Muenzaniso wemibvunzo yekufamba zvakananga

Mienzaniso gumi nemapfumbamwe yeMibvunzo yeKufamba Kwakatwasuka

1. Tarisa girafu yekumhanya (v) zvichienderana nenguva (t) yechinhu chiri kufamba mumutsara wakatwasuka. Hukuru hwekuderera kwedanho hunoonekwa nechinhu ichi….
A. 2,5 ms^-2
B. 3,5 ms^-2
C. 4,0 ms^-2
D. 5,0 ms^-2
E. 6,0 ms^-2
Kukurukurirana
AB = kumhanyisa nguva dzose (kufamba kwemutsara kunochinja zvakafanana), BC = kumhanya nguva dzose (kufamba kwemutsara kunochinja zvakafanana), CD = kudzikira nguva dzose (kufamba kwemutsara kunochinja zvakafanana).

Mhinduro chaiyo ndiA.

2. Girafu riri padivi igrafu yechinhu chiri kufamba mumutsara wakatwasuka. Nhambwe inofambiswa nechinhu chiri pakati pe 0 ne 8 s ndeye….
A. 72 m
B. 64 m
C. 48 m
D. 24 m
E. 12 m
Kukurukurirana
Shandisa nzira imwecheteyo sedambudziko rekare, apo daro rakafambwa = nzvimbo yenzvimbo ine mumvuri pagirafu. Tarisa girafu iri pamusoro! Nzvimbo ine mumvuri yakakamurwa kuita zvikamu kuitira kuti nzvimbo ikwanise kuverengwa uchishandisa fomura inozivikanwa.
Nzvimbo yendege 1 = nzvimbo yetriangle = ½ (4-0)(12-0) = ½ (4)(12) = (2)(12) = 24
Nzvimbo yendege 2 = nzvimbo yerectangle = (8-4)(12-0) = (4)(12) = 48

Kureba kwakafambwa panguva yemasekondi masere = 24 + 48 = mamita makumi manomwe nemaviri
Mhinduro chaiyo ndiA.

3. Tarisa girafu ye velocity v against t yechinhu chinotevera chiri kufamba mumutsara wakatwasuka!
Nharaunda yakafambwa mumasekonzi gumi nemaviri ndiyo….
A. 8 m
B. 10 m
C. 12 m
D. 24 m
E. 36 m
Kukurukurirana
Mubvunzo uyu wakafanana newapfuura. Kunyange zvazvo mubvunzo wapfuura waibvunza daro rakafambwa mumasekonzi gumi, mubvunzo uyu waibvunza daro rakafambwa mumasekonzi gumi nemaviri.

4. Chinhu chinofamba chakatwasuka nekumhanya kwakafanana kwe36 km/h ^-1 kwemasekonzi mashanu, chobva chakurumidza nekumhanya kwe1 m/s ^-2 kwemasekonzi gumi uye chinodzika nekumhanya kwe2 m/s ^-2 kusvika chinhu chamira. Girafu (vt) inoratidza rwendo rwechinhu ndeiyi...

Kukurukurirana
Zvinozivikanwa kuti:
Kufamba 1 = GLB
Kumhanya kwakasimba (v) = 36 km/awa = 36 (1000 m) / 3600 s = 36.000 m / 3600 s = 10 m/s
Nguva yepakati (t) = masekondi maviri
Kufamba kwechipiri = GLBB yakakurumidza
Kumhanya kwekutanga (v)_o) = kumhanya kwekufamba 1 = 10 m/s
Kukurumidzisa (a) = 1 m/s2
Nguva yepakati (t) = masekondi maviri
Kufamba 3 = GLBB Yaderera
Kukurumidzisa (a) = -2 m/s²
Kumhanya kwekupedzisira (v)_t) = 0 m/s
Zviri Kudiwa: Girafu inoratidza kufamba kwechinhu

Mhinduro:
Girafu inogona kuzivikanwa mushure mekuziva kumhanya kwekupedzisira kwekufamba 2 uye nguva yekufamba 3.
Kumhanya kwekupedzisira kwekufamba 2:
v_t =v_o + pa
v_t = 10 + (1)(10) = 10 + 10 = 20 m/s
Kumhanya kwekupedzisira kwekufamba 2 (v)_t) = kumhanya kwekutanga kwekufamba 3 (v)_o) = 20 m/s
Nguva yekufamba 3:
v_t =v_o + pa
0 = 20 + (-2)(t)
0 = 20 – 2t
20 = 2t
t = 20 / 2
t = masekondi maviri

Tarisa girafu iri pamusoro.
Kufamba 1: Chinhu chinofamba nekumhanya kwakafanana kwe10 m/s kwemasekondi mashanu.
Kufamba kwechipiri: Chinhu chinomhanyisa kwemasekonzi gumi kusvika kumhanya kwacho kwasvika 20 m/s
Kufamba kwechitatu: Chinhu chinononoka kumhanya kwemasekonzi gumi kusvika chamira.
Girafu yakakodzera ndiyo girafu iri mumhinduro B.
Mhinduro chaiyo ndeiyi B.

5. Mota inotanga kufamba yakatwasuka ichimhanya diki diki 5 ms ^-1 . Mushure mekuchengetedza kumhanya kwayo kwemasekonzi gumi, mota inomhanyisa zvekuti mumasekonzi mashanu anotevera inomhanyisa diki diki 1 ms ^-2 . Zvadaro injini yemota inodzimwa kuitira kuti mota imire mushure mekufamba daro re137,5 m. Kufamba kwemota kunogona kutsanangurwa negirafu yekumhanya (v) zvichienderana nenguva (t) iyo yakakodzera....

Kukurukurirana
Zvinozivikanwa kuti:
Kufamba 1 = GLB
Kumhanya kwakasimba (v) = 5 m/s
Nguva yepakati (t) = masekondi maviri
Kufamba kwechipiri = GLBB yakakurumidza
Kumhanya kwekutanga (v)_o) = kumhanya kwekufamba 1 = 5 m/s
Kukurumidzisa (a) = 1 m/s2
Nguva yepakati (t) = masekondi maviri
Kufamba 3 = GLBB Yaderera
Kumhanya kwekupedzisira (v)_t) = 0 m/s
Nhambwe yose yakafambwa = 137,5 m/s
Zviri Kudiwa: Girafu inoratidza kufamba kwechinhu
Mhinduro:
Kufamba rwendo rwechitatu:
s = vt = (5)(10) = mamita gumi
Kufamba rwendo rwechitatu:
s = v_o t + ½ pa² = (5)(5) + ½ (1)(5)2 = 25 + ½ (25) = 25 + 12,5 = 37,5 mamita
Kufamba rwendo rwechitatu:
137,5 – (50 + 37,5) = 137,5 – 87,5 = mamita makumi mashanu

Girafu inogona kuzivikanwa mushure mekuziva kumhanya kwekupedzisira kwekufamba 2 uye nguva yekufamba 3.
Kumhanya kwekupedzisira kwekufamba 2
Kumhanya kwekupedzisira kwekufamba 2 kunoverengwa uchishandisa data rekufamba 2.
v_t =v_o + pa
v_t = 5 + (1)(5) = 5 + 5 = 10 m/s
Kumhanya kwekupedzisira kwekufamba 2 (v)_t) = kumhanya kwekutanga kwekufamba 3 (v)_o) = 10 m/s

Nguva yekufamba 3
Nguva inogona kuverengwa mushure mekunge kuderera kwedanho kwazivikanwa. Kuverenga kuderera kwedanho (a) uye nguva (t) kunoshandisa data rekufamba 3.

Kudzikira kwesimba rechinhu chiri kufamba 3:
v_t² =v_o² + maekisero maviri
0² = 10² + 2 (50)
0 = 100 + 100 a
100 = -100 a
a = – 100/100
a = – 1 m/s²
Nguva yekufamba 3:
v_t = vo + pa
0 = 10 + (-1) t
0 = 10 – t
t = masekondi maviri
Tarisa girafu iri pamusoro.
Kufamba 1: Chinhu chinofamba nekumhanya kwakafanana kwe5 m/s kwemasekondi mashanu.
Kufamba kwechipiri: Chinhu chinomhanyisa kwemasekonzi gumi kusvika kumhanya kwacho kwasvika 10 m/s
Kufamba kwechitatu: Chinhu chinononoka kumhanya kwemasekonzi gumi kusvika chamira.
Mhinduro chaiyo ndiD.

6. Mota ine huremu hwe800 kg inofamba yakatwasuka ine kumhanya kwekutanga kwe36 km/awa.^-1 Mushure mekufamba chinhambwe che150 m, kumhanya kunosvika 72 km/awa^-1Nguva yekufamba kwemotokari iyi…
A. Masekondi 5
B. Masekondi 10
C. Masekondi mazana matanhatu nemakumi matatu
D. Masekondi mazana mashanu nemakumi manomwe
E. Masekondi maviri
Kukurukurirana
Zvinozivikanwa kuti:
v_o = 36 km/h = 36000 m / 3600 s = 10 m/s
v_t = 72 km/h = 72000 m / 3600 s = 20 m/s
s = mamita zana
Akabvunzwa: nguva yekufamba (t)?
Mhinduro:
Kune mafomura matatu ekufamba kwemutsara kwakabatana (GLBB):
v_t =v_o + pa
s = vo t + ½ pa²
v_t² =v_o² + maekisero maviri
Zvichibva padata rinozivikanwa, hatigone kuverenga zvakananga nguva yekufamba tichishandisa imwe yemafomula ari pamusoro apa.
Kutanga verenga kumhanyisa (a) uchishandisa fomura yechitatu.
v_t² =v_o² + maekisero maviri
20² = 10² + 2 (150)
400 = 100 + 300 a
400 – 100 = 300 a
300 = 300 a
a = 300 / 300
a = 1 m/s²
Verenga nguva (t) uchishandisa fomura yekutanga.
v_t =v_o + pa
20 = 10 + (1) t
20 - 10 = t
t = masekondi maviri
Mhinduro chaiyo ndeiyi B.

7. Mutyairi wemotokari ari kufamba nekumhanya kwe20 m/s. Paanoona kuputika kwemota pamberi pake, anotsika mabhureki mota yomira mushure memasekonzi mashanu. Verenga daro rakafambwa nemotokari!
Kukurukurirana
Zvinozivikanwa kuti:
Kumhanya kwekutanga (v)_o) = 20 m/s
Kumhanya kwekupedzisira (v)_t) = 0 m/s
Nguva yepakati (t) = masekondi maviri
Akabvunzwa: daro rakafambwa (s)
Mhinduro:
Kutanga verenga kuderera kwemota:
v_t =v_o + pa
0 = 20 + a 5
-20 = 5a
a = -20/5
a = -4 m/s²
Verenga daro rakafambwa nemota:
s = v_o t + 1/2 pa²
s = (20)(5) + 1/2 (-4)(5)2 = (20)(5) + (-2)(25)
s = 100 - 50
s = mamita zana
Nhambwe yakafambwa nemota iyi mamita makumi mashanu.

8. Tarisa mufananidzo unotevera.

Nhambwe inofambiswa nechinhu panguva t = masekondi makumi mana ndiyo…

A. 100 m

B. 160 m

C. 220 m

D. 280 m

E. 320 m

Kukurukurirana

Nzvimbo yemunda 1 = nzvimbo yerectangle = (20-0)(8-0) = (20)(8) = mamita 160

Nzvimbo yendege 2 = nzvimbo yetriangle = ½ (25-20)(8-0) = ½ (5)(8) = (5)(4) = mamita makumi maviri

Nzvimbo yendege 3 = nzvimbo yetriangle = ½ (30-25)(8-0) = ½ (5)(8) = (5)(4) = mamita makumi maviri

Nzvimbo yemunda 4 = nzvimbo yerectangle = (40-30)(8-0) = (10)(8) = mamita 80

Kufamba kwenguva yemasekondi makumi mana = 160 + 20 + 20 + 80 = 280 metres

Mhinduro chaiyo ndiD.

9. Kuchinja kwekumhanya kwechinhu chinofamba kwemasekonzi makumi maviri kunoratidzwa mugrafu yevt iri pazasi!

Nhambwe inofambiswa nechinhu chichifamba ndeye…

A. 200 m

B. 260 m

C. 300 m

D. 400 m

E. 470 m

Kukurukurirana

Nzvimbo yendege 1 = nzvimbo yetriangle = ½ (5-0)(20-0) = ½ (5)(20) = (5)(10) = mamita makumi maviri

Nzvimbo yemunda 2 = nzvimbo yerectangle = (15-5)(20-0) = (10)(20) = mamita 200

Nzvimbo yendege 3 = nzvimbo yetriangle = ½ (20-15)(20-0) = ½ (5)(20) = (5)(10) = mamita makumi maviri

Kufamba kwenguva yemasekondi makumi maviri = 50 + 200 + 50 = mamita mazana matatu

Mhinduro chaiyo ndiC.

10. Chinhu chinofamba chakatwasuka nekumhanya kwakafanana kwe36 km/h ^-1 kwemasekonzi mashanu, chobva chakurumidza nekumhanya kwe1 m/s ^-2 kwemasekonzi gumi uye chinodzika nekumhanya kwe2 m/s ^-2 kusvika chinhu chamira. Girafu (vt) inoratidza rwendo rwechinhu ndeiyi...

Kukurukurirana

Zvinozivikanwa kuti:
Kufamba 1 = GLB
Kumhanya kwakasimba (v) = 36 km/awa = 36 (1000 m) / 3600 s = 36.000 m / 3600 s = 10 m/s
Nguva yepakati (t) = masekondi maviri
Kufamba kwechipiri = GLBB yakakurumidza
Kumhanya kwekutanga (v)_o) = kumhanya kwekufamba 1 = 10 m/s
Kukurumidzisa (a) = 1 m/s²
Nguva yepakati (t) = masekondi maviri
Kufamba 3 = GLBB Yaderera
Kukurumidzisa (a) = -2 m/s²
Kumhanya kwekupedzisira (v)_t) = 0 m/s
Zviri Kudiwa: Girafu inoratidza kufamba kwechinhu
Mhinduro:

Girafu inogona kuzivikanwa mushure mekuziva kumhanya kwekupedzisira kwekufamba 2 uye nguva yekufamba 3.
Kumhanya kwekupedzisira kwekufamba 2:
v_t =v_o + pa
v_t = 10 + (1)(10) = 10 + 10 = 20 m/s

Kumhanya kwekupedzisira kwekufamba 2 (v)_t) = kumhanya kwekutanga kwekufamba 3 (v)_o) = 20 m/s
Nguva yekufamba 3:
v_t =v_o + pa
0 = 20 + (-2)(t)
0 = 20 – 2t
20 = 2t
t = 20 / 2
t = masekondi maviri

Tarisa girafu iri pamusoro.
Kufamba 1: Chinhu chinofamba nekumhanya kwakafanana kwe10 m/s kwemasekondi mashanu.
Kufamba kwechipiri: Chinhu chinomhanyisa kwemasekonzi gumi kusvika kumhanya kwacho kwasvika 20 m/s
Kufamba kwechitatu: Chinhu chinononoka kumhanya kwemasekonzi gumi kusvika chamira.
Girafu yakakodzera ndiyo girafu iri mumhinduro B.
Mhinduro chaiyo ndeiyi B.

11. Mota inotanga kufamba yakatwasuka ichimhanya diki diki 5 ms ^-1 . Mushure mekuchengetedza kumhanya kwayo kwemasekonzi gumi, mota inomhanyisa zvekuti mumasekonzi mashanu anotevera inomhanyisa diki diki 1 ms ^-2 . Zvadaro injini yemota inodzimwa kuitira kuti mota imire mushure mekufamba daro re137,5 m. Kufamba kwemota kunogona kutsanangurwa negirafu yekumhanya (v) zvichienderana nenguva (t) iyo yakakodzera....

Kukurukurirana
Zvinozivikanwa kuti:
Kufamba 1 = GLB
Kumhanya kwakasimba (v) = 5 m/s
Nguva yepakati (t) = masekondi maviri
Kufamba kwechipiri = GLBB yakakurumidza
Kumhanya kwekutanga (v)_o) = kumhanya kwekufamba 1 = 5 m/s
Kukurumidzisa (a) = 1 m/s²
Nguva yepakati (t) = masekondi maviri
Kufamba 3 = GLBB Yaderera
Kumhanya kwekupedzisira (v)_t) = 0 m/s

Nhambwe yose yakafambwa = 137,5 m/s
Zviri Kudiwa: Girafu inoratidza kufamba kwechinhu
Mhinduro:
Kufamba rwendo rwechitatu:
s = vt = (5)(10) = mamita gumi
Kufamba rwendo rwechitatu:
s = v_o t + ½ pa² = (5)(5) + ½ (1)(5)² = 25 + ½ (25) = 25 + 12,5 = mamita 37,5
Kufamba rwendo rwechitatu:
137,5 – (50 + 37,5) = 137,5 – 87,5 = mamita makumi mashanu

Girafu inogona kuzivikanwa mushure mekuziva kumhanya kwekupedzisira kwekufamba 2 uye nguva yekufamba 3.
Kumhanya kwekupedzisira kwekufamba 2
Kumhanya kwekupedzisira kwekufamba 2 kunoverengwa uchishandisa data rekufamba 2.

v _t = vo ₊ pa

v _t = 5 + (1)(5) = 5 + 5 = 10 m/s

Kumhanya kwekupedzisira kwekufamba 2 (v _t ) = kumhanya kwekutanga kwekufamba 3 (v _o ) = 10 m/s

Nguva yekufamba 3

Nguva inogona kuverengwa mushure mekunge kuderera kwedanho kwazivikanwa. Kuverenga kuderera kwedanho (a) uye nguva (t) kunoshandisa data rekufamba 3.

Kudzikira kwesimba rechinhu chiri kufamba 3:

v _t ² = v _o ² + 2 se

0 ² = 10 ² + 2 a (50)

0 = 100 + 100 a

100 = -100 a

a = – 100/100

a = – 1 m/s ²

Nguva yekufamba 3:

v _t = vo ₊ pa

0 = 10 + (-1) t

0 = 10 – t

t = masekondi maviri

Tarisa girafu iri pamusoro.

Kufamba 1: Chinhu chinofamba nekumhanya kwakafanana kwe5 m/s kwemasekondi mashanu.

Kufamba kwechipiri: Chinhu chinomhanyisa kwemasekonzi gumi kusvika kumhanya kwacho kwasvika 10 m/s

Kufamba kwechitatu: Chinhu chinononoka kumhanya kwemasekonzi gumi kusvika chamira.

Mhinduro chaiyo ndiD.

Kufamba Kwakarurama

12.

Girafu iri kurudyi inoratidza chinhu chiri kufamba mumutsara wakatwasuka. Nhambwe inofambiswa nechinhu ichi pakati pemasekondi 0 ne8 ndeye….

A. 72 m
B. 64 m
C. 48 m
D. 24 m
E. 12 m

Kukurukurirana
Shandisa nzira imwecheteyo sedambudziko rekare, apo daro rakafambwa = nzvimbo yenzvimbo ine mumvuri pagirafu. Tarisa girafu iri pamusoro! Nzvimbo ine mumvuri yakakamurwa kuita zvikamu kuitira kuti nzvimbo ikwanise kuverengwa uchishandisa fomura inozivikanwa.
Nzvimbo yendege 1 = nzvimbo yetriangle = ½ (4-0)(12-0) = ½ (4)(12) = (2)(12) = 24
Nzvimbo yendege 2 = nzvimbo yerectangle = (8-4)(12-0) = (4)(12) = 48

Kureba kwakafambwa panguva yemasekondi masere = 24 + 48 = mamita makumi manomwe nemaviri
Mhinduro chaiyo ndiA.

13.

Teerera girafu speed v achipesana ne t pachinhu chiri kufamba mumutsara wakatwasuka pazasi!
Nharaunda yakafambwa mumasekonzi gumi nemaviri ndiyo….

A. 8 m
B. 10 m
C. 12 m
D. 24 m
E. 36 m

Kukurukurirana
Mubvunzo uyu wakafanana newapfuura. Kunyange zvazvo mubvunzo wapfuura waibvunza daro rakafambwa mumasekonzi gumi, mubvunzo uyu waibvunza daro rakafambwa mumasekonzi gumi nemaviri.
Nzvimbo ye1 = nzvimbo yetriangle = ½ (2-0)(4-0) = ½ (2)(4) = 4
Nzvimbo yendege 2 = nzvimbo yerectangle = (6-2)(4-0) = (4)(4) = 16
Nzvimbo ye3 = nzvimbo yetriangle = ½ (8-6)(4-0) = ½ (2)(4) = 4
Nzvimbo ye4 = nzvimbo yetriangle = ½ (10-8)(4-0) = ½ (2)(4) = 4
Nzvimbo ye5 = nzvimbo yesikweya = (12-10)(4-0) = (2)(4) = 8

Kufamba kwenguva yemasekondi gumi = 4 + 16 + 4 + 4 + 8 = mamita makumi matatu nematanhatu
Mhinduro chaiyo ndiD.

Kwakabva mubvunzo:

Mibvunzo yeNational Examination Physics yeChikoro Chesekondari/Chikoro Chepamusoro Chebasa

Mienzaniso yemibvunzo yekufamba kwakananga yakafanana
14. Mota inofamba yakatwasuka ichimhanya 10 m/s. Sarudza daro rakafamba mota mushure mekufamba 10 m/s.
Kukurukurirana
Kumhanya kwakasimba kwemamita gumi pasekondi zvinoreva kuti mota inofamba mamita gumi pasekondi imwe chete.
Mushure memasekonzi gumi, mudhudhudhu unofamba chinhambwe che (2)(2) = mamita zana,
Mushure memasekonzi gumi, mudhudhudhu unofamba chinhambwe che (3)(3) = mamita zana,
Mushure memasekonzi gumi, mudhudhudhu unofamba chinhambwe che (10)(10) = mamita zana.
Dzidza zvakawanda papeji muenzaniso wekufamba kwakatwasuka kwakafanana

Muenzaniso wekufamba kwakarongeka kwakafanana
15. Chinhu chinotanga chakazorora chinofamba nekumhanya kwakasimba kwe5 m/s.²Sarudza kumhanya uye daro rakafambwa mushure memasekonzi gumi.
Kukurukurirana
(a) Kumhanya mushure memasekonzi mashanu
Kumhanya-mhanya nguva dzose kwe5 m/s² Izvi zvinoreva kuti kumhanya kunowedzera ne5 m/s pasekondi imwe chete. Mushure memasekonzi maviri, kumhanya kunowedzera kusvika 10 m/s. Mushure memasekonzi mashanu, kumhanya kunowedzera kusvika 25 m/s.
(b) Nhanho yakafambwa mushure memasekonzi mashanu
Zvinozivikanwa kuti:
Kumhanya kwekutanga (v)_o) = 0 (chinhu chacho chinotanga chakamira).
Kukurumidzisa (a) = 5 m/s²
Nguva yepakati (t) = masekondi maviri
Akabvunzwa: daro rakafambwa (s)
Mhinduro:
s = v_o t + ½ pa² = (0)(5) + ½ (5)(5)²) = 0 + (2,5)(25) = mamita 62,5
Nhambwe yakafambwa mushure memasekonzi mashanu i62,5 metres.

16. Mota inorema 400 kg iri kufamba yakatwasuka nekumhanya kwekutanga kwe72 km/awa. Mushure mekufamba mamita zana, kumhanya kwayo kunowedzera kusvika 108 km/awa. Nguva inotorwa nemota kufamba chinhambwe ichi i...
A. Sekondi imwe
B. Masekondi maviri
C. Masekondi matatu
D. Masekondi mana
E. Masekondi mashanu
Kukurukurirana
Zvinozivikanwa kuti:
v_o = 72 km/h = (72) (1000 m) / 3600 s = 20 m/s
v_t = 108 km/h = (108) (1000 m) / 3600 s = 30 m/s
s = mamita zana
Akabvunzwa: nguva (t)?
Mhinduro:

17. Girafu riri padivi rinoratidza kufamba kwemotokari yakatwasuka nepamwero usingachinji. Nhambwe inofambiswa nemotokari mumasekonzi masere...

A. 40 m
B. 60 m
C. 80 m
D. 100 m
E. 120 m
Kukurukurirana
Zvinozivikanwa kuti:
v_o = 10 m/s
v_t = 20 m/s
t = masekondi maviri
Akabvunzwa: Kufamba daro (daro)?
Mhinduro:

Mhinduro chaiyo ndiE.

18. Girafu riri padivi igrafu yechinhu chiri kufamba mumutsara wakatwasuka. Nhambwe inofambiswa nechinhu ichi pakati pemasekondi 0 ne6 ndeye...

A. 40 m
B. 45 m
Nzvimbo yepakati penyika 50 m
D. 55 m
E. 60 m
Kukurukurirana
Kufamba kure = nzvimbo yegirafu (s = vt)
Kureba kwatakafamba 1 = ½ (10)(3) = (5)(3) = mamita gumi nemashanu
Kureba kwatakafamba 2 = (10)(6-3) = (10)(3) = mamita makumi matatu
Nhanho yese yakafambwa:
Mamita gumi nemashanu + mamita makumi matatu = mamita makumi mana nemashanu
Mhinduro chaiyo ndeiyi B

Dzidza zvakawanda papeji remuenzaniso wekufamba kwemutsara kwakakurumidza zvakafanana.

Muenzaniso wekufamba kwemahara kwekuwa
19. Mango yakadonha kubva padzinde ndokusvika pasi mushure memasekonzi maviri. Kumhanya kwemuchero wemango kana wasvika pasi ndekwe... g = 10 m/s²
Kukurukurirana
Kana kukurumidza kunokonzerwa negiravhiti = 10 m/s² Saka mango kana chero chinhu chinodonha zvakasununguka chinowana kuwedzera kwekumhanya kwe10 m/s pasekondi imwe chete. Mushure memasekonzi maviri, kumhanya kwemango kunosvika 20 m/s.
Dzidza zvakawanda papeji muenzaniso wekufamba kwemahara kwekuwa