Isibonelo semibuzo yokunyakaza okuqondile

Izibonelo eziyi-19 zemibuzo yokunyakaza okuqondile

1. Bheka igrafu yejubane (v) ngesikhathi (t) sento ehamba emgqeni oqondile. Ubukhulu bokwehla kwejubane okubonwa yinto….
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
Ingxoxo
I-AB = ukusheshisa okuqhubekayo (ukunyakaza okuqondile okushintsha ngendlela efanayo), i-BC = ijubane eliqhubekayo (ukunyakaza okuqondile okushintsha ngendlela efanayo), i-CD = ukwehla okuqhubekayo (ukunyakaza okuqondile okushintsha ngendlela efanayo).

Impendulo efanele ngu-A.

2. Igrafu eseceleni iyigrafu yento ehamba emgqeni oqondile. Ibanga elihanjwe yinto ephakathi kwemizuzwana engu-0 no-8….
A. 72 m
B. 64 m
C. 48 m
D. 24 m
E. 12 m
Ingxoxo
Sebenzisa indlela efanayo nenkinga yangaphambilini, lapho ibanga elihanjiwe = indawo yendawo enomthunzi kugrafu. Bheka igrafu engenhla! Indawo enomthunzi ihlukaniswe ngezigaba ukuze indawo ibalwe kusetshenziswa ifomula eyaziwayo.
Indawo yendiza 1 = indawo kanxantathu = ½ (4-0)(12-0) = ½ (4)(12) = (2)(12) = 24
Indawo yendiza 2 = indawo yesikwele = (8-4)(12-0) = (4)(12) = 48

Ibanga elihanjiwe ngesikhathi sesikhawu semizuzwana engu-8 = 24 + 48 = amamitha angu-72
Impendulo efanele ngu-A.

3. Bheka igrafu yejubane u-v ngokumelene no-t yento elandelayo ehamba emgqeni oqondile!
Ibanga elihanjiwe ngemizuzwana eyi-12….
A. 8 m
B. 10 m
C. 12 m
D. 24 m
E. 36 m
Ingxoxo
Lo mbuzo ufana nowangaphambilini. Ngenkathi umbuzo wangaphambilini ubuze ibanga elihanjiwe ngemizuzwana eyi-10, lo mbuzo ubuza ibanga elihanjiwe ngemizuzwana eyi-12.

4. Into ihamba ngomugqa oqondile ngesivinini esingaguquki samakhilomitha angu-36 ngehora.^-1 imizuzwana emi-5, bese isheshiswa ngokusheshisa okungu-1 ms^-2 imizuzwana eyi-10 futhi yehliswe ngokunciphisa ijubane okungu-2 ms^-2 kuze kube yilapho into ima. Igrafu (vt) ekhombisa uhambo lwento ithi...

Ingxoxo
Kuyaziwa ukuthi:
Ukunyakaza 1 = GLB
Isivinini esingaguquki (v) = 36 km/h = 36 (1000 m) / 3600 s = 36.000 m / 3600 s = 10 m/s
Isikhawu sesikhathi (t) = 5 imizuzwana
Ukunyakaza 2 = i-GLBB esheshisiwe
Ijubane lokuqala (v)_o) = isivinini sokunyakaza 1 = 10 m/s
Ukusheshisa (a) = 1 m/s2
Isikhawu sesikhathi (t) = 10 imizuzwana
Ukunyakaza 3 = I-GLBB Enciphile
Ukusheshisa (a) = -2 m/s²
Ijubane lokugcina (v)_t) = 0 m/s
Okufunwayo: Igrafu ekhombisa ukuhamba kwento

Impendulo:
Igrafu inganqunywa ngemva kokwazi isivinini sokugcina sokunyakaza 2 kanye nesikhathi sokunyakaza 3.
Ijubane lokugcina lokunyakaza 2:
v_t =v_o + ku-
v_t = 10 + (1)(10) = 10 + 10 = 20 m/s
Ijubane lokugcina lokunyakaza 2 (v)_t) = isivinini sokuqala sokunyakaza 3 (v_o) = 20 m/s
Isikhawu sesikhathi sokunyakaza 3:
v_t =v_o + ku-
0 = 20 + (-2)(t)
0 = 20 – 2t
20 = 2t
t = 20 / 2
t = imizuzwana emi-10

Bheka igrafu engenhla.
Ukunyakaza 1: Into ihamba ngesivinini esingaguquki esingu-10 m/s imizuzwana emi-5.
Ukunyakaza 2: Into ishesha imizuzwana eyi-10 kuze kube yilapho ijubane layo lifinyelela ku-20 m/s
Ukunyakaza 3: Into yehliswa ijubane imizuzwana eyi-10 ize ime.
Igrafu efanele yigrafu empendulweni B.
Impendulo efanele ingu-B.

5. Imoto iqala ukuhamba ngendlela eqondile ngesivinini esingaguquki esingu-5 ms.^-1Ngemva kokugcina ijubane layo imizuzwana eyi-10, imoto ishesha kangangokuthi emizuzwaneni emi-5 elandelayo isheshe ibe nesivinini esingu-1 ms.^-2. Bese injini yemoto icishwa ukuze imoto ime ngemva kokuhamba ibanga eliphelele elingamamitha angu-137,5. Ukunyakaza kwemoto kungachazwa ngegrafu yesivinini (v) ngokumelene nesikhathi (t) okufanele...

Ingxoxo
Kuyaziwa ukuthi:
Ukunyakaza 1 = GLB
Isivinini esingaguquki (v) = 5 m/s
Isikhawu sesikhathi (t) = 10 imizuzwana
Ukunyakaza 2 = i-GLBB esheshisiwe
Ijubane lokuqala (v)_o) = isivinini sokunyakaza 1 = 5 m/s
Ukusheshisa (a) = 1 m/s2
Isikhawu sesikhathi (t) = 5 imizuzwana
Ukunyakaza 3 = I-GLBB Enciphile
Ijubane lokugcina (v)_t) = 0 m/s
Ibanga eliphelele elihanjiwe = 137,5 m/s
Okufunwayo: Igrafu ekhombisa ukuhamba kwento
Impendulo:
Ibanga elihanjwa ngokunyakaza 1:
s = vt = (5)(10) = amamitha ayi-50
Ibanga elihanjwa ngokunyakaza 2:
s = v_o t + ½ ku² = (5)(5) + ½ (1)(5)2 = 25 + ½ (25) = 25 + 12,5 = amamitha angu-37,5
Ibanga elihanjwa ngokunyakaza 3:
137,5 – (50 + 37,5) = 137,5 – 87,5 = amamitha angu-50

Igrafu inganqunywa ngemva kokwazi isivinini sokugcina sokunyakaza 2 kanye nesikhathi sokunyakaza 3.
Ijubane lokugcina lokunyakaza 2
Ijubane lokugcina lokunyakaza 2 libalwa kusetshenziswa idatha yokunyakaza 2.
v_t =v_o + ku-
v_t = 5 + (1)(5) = 5 + 5 = 10 m/s
Ijubane lokugcina lokunyakaza 2 (v)_t) = isivinini sokuqala sokunyakaza 3 (v_o) = 10 m/s

Isikhathi sokunyakaza 3
Isikhathi singabalwa ngemva kokuba sekwaziwe ukuthi ijubane lizohamba kancane. Ukubalwa kokwehla kwejubane (a) kanye nesikhathi (t) kusebenzisa idatha yokunyakaza 3.

Ukwehla kwejubane lento enyakazayo 3:
v_t² =v_o² + ama-ekseli ama-2
0² = 10² + 2 (50)
0 = 100 + 100 a
100 = -100 a
a = – 100/100
a = – 1 m/s²
Isikhawu sesikhathi sokunyakaza 3:
v_t = vo + at
0 = 10 + (-1) t
0 = 10 – t
t = imizuzwana emi-10
Bheka igrafu engenhla.
Ukunyakaza 1: Into ihamba ngesivinini esingaguquki esingu-5 m/s imizuzwana emi-10.
Ukunyakaza 2: Into ishesha imizuzwana eyi-5 kuze kube yilapho ijubane layo lifinyelela ku-10 m/s
Ukunyakaza 3: Into yehliswa ijubane imizuzwana eyi-10 ize ime.
Impendulo efanele ngu-D.

6. Imoto enesisindo esingamakhilogremu angu-800 ihamba ngendlela eqondile ngesivinini sokuqala esingamakhilomitha angu-36 ngehora.^-1 Ngemva kokuhamba ibanga elingamamitha ayi-150, ijubane liba ngu-72 km/h^-1Isikhathi sokuhamba semoto singu…
A. umzuzwana owodwa
B. imizuzwana emi-10
C. imizuzwana engu-17
D. imizuzwana engu-25
E. imizuzwana engama-35
Ingxoxo
Kuyaziwa ukuthi:
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 = amamitha angu-150
Kubuziwe: isikhathi sokuhamba (t)?
Impendulo:
Kunezindlela ezintathu zokunyakaza okuqondile okusheshisiwe (GLBB):
v_t =v_o + ku-
s = vo t + ½ ku²
v_t² =v_o² + ama-ekseli ama-2
Ngokusekelwe kudatha eyaziwayo, asikwazi ukubala ngqo isikhathi sokuhamba sisebenzisa enye yamafomula angenhla.
Okokuqala bala ukusheshisa (a) usebenzisa ifomula yesithathu.
v_t² =v_o² + ama-ekseli ama-2
20² = 10² + 2 (150)
400 = 100 + 300 a
400 – 100 = 300 a
300 = 300 a
a = 300/300
a = 1 m/s²
Bala isikhawu sesikhathi (t) usebenzisa ifomula yoku-1.
v_t =v_o + ku-
20 = 10 + (1) t
20 – 10 = t
t = imizuzwana emi-10
Impendulo efanele ingu-B.

7. Umshayeli wemoto uhamba ngesivinini esingama-20 m/s. Lapho ebona isivinini phambi kwakhe, unyathela amabhuleki bese imoto ima ngemva kwemizuzwana emi-5. Bala ibanga elihanjwe yimoto!
Ingxoxo
Kuyaziwa ukuthi:
Ijubane lokuqala (v)_o) = 20 m/s
Ijubane lokugcina (v)_t) = 0 m/s
Isikhawu sesikhathi (t) = 5 imizuzwana
Kubuziwe: ibanga elihanjiwe (ama)
Impendulo:
Okokuqala bala ukwehla kwejubane lemoto:
v_t =v_o + ku-
0 = 20 + a 5
-20 = 5a
a = -20/5
a = -4 m/s²
Bala ibanga elihanjwe yimoto:
s = v_o t + 1/2 ku²
s = (20)(5) + 1/2 (-4)(5)2 = (20)(5) + (-2)(25)
s = 100 – 50
s = amamitha angu-50
Ibanga elihanjwa yimoto lingamamitha angu-50.

8. Bheka isithombe esilandelayo.

Ibanga elihanjwe yinto ngesikhathi u-t = imizuzwana engama-40…

A. 100 m

B. 160 m

C. 220 m

D. 280 m

E. 320 m

Ingxoxo

Indawo yensimu 1 = indawo yesikwele = (20-0)(8-0) = (20)(8) = amamitha ayi-160

Indawo yendiza 2 = indawo kanxantathu = ½ (25-20)(8-0) = ½ (5)(8) = (5)(4) = amamitha angu-20

Indawo yendiza 3 = indawo kanxantathu = ½ (30-25)(8-0) = ½ (5)(8) = (5)(4) = amamitha angu-20

Indawo yensimu 4 = indawo yesikwele = (40-30)(8-0) = (10)(8) = amamitha ayi-80

Ibanga elihanjiwe ngesikhathi sesikhawu semizuzwana engama-40 = 160 + 20 + 20 + 80 = amamitha angama-280

Impendulo efanele ngu-D.

9. Ushintsho lwesivinini sento ehamba imizuzwana engama-20 luboniswe kugrafu ye-vt engezansi!

Ibanga elihanjwa yinto ngenkathi ihamba li…

A. 200 m

B. 260 m

C. 300 m

D. 400 m

E. 470 m

Ingxoxo

Indawo yendiza 1 = indawo kanxantathu = ½ (5-0)(20-0) = ½ (5)(20) = (5)(10) = amamitha angu-50

Indawo yensimu 2 = indawo yesikwele = (15-5)(20-0) = (10)(20) = amamitha ayi-200

Indawo yendiza 3 = indawo kanxantathu = ½ (20-15)(20-0) = ½ (5)(20) = (5)(10) = amamitha angu-50

Ibanga elihanjiwe ngesikhathi sesikhawu semizuzwana engama-20 = 50 + 200 + 50 = amamitha angama-300

Impendulo efanele ngu-C.

10. Into ihamba ngomugqa oqondile ngesivinini esingaguquki samakhilomitha angu-36 ngehora.^-1 imizuzwana emi-5, bese isheshiswa ngokusheshisa okungu-1 ms^-2 imizuzwana eyi-10 futhi yehliswe ngokunciphisa ijubane okungu-2 ms^-2 kuze kube yilapho into ima. Igrafu (vt) ekhombisa uhambo lwento ithi...

Ingxoxo

Kuyaziwa ukuthi:
Ukunyakaza 1 = GLB
Isivinini esingaguquki (v) = 36 km/h = 36 (1000 m) / 3600 s = 36.000 m / 3600 s = 10 m/s
Isikhawu sesikhathi (t) = 5 imizuzwana
Ukunyakaza 2 = i-GLBB esheshisiwe
Ijubane lokuqala (v)_o) = isivinini sokunyakaza 1 = 10 m/s
Ukusheshisa (a) = 1 m/s²
Isikhawu sesikhathi (t) = 10 imizuzwana
Ukunyakaza 3 = I-GLBB Enciphile
Ukusheshisa (a) = -2 m/s²
Ijubane lokugcina (v)_t) = 0 m/s
Okufunwayo: Igrafu ekhombisa ukuhamba kwento
Impendulo:

Igrafu inganqunywa ngemva kokwazi isivinini sokugcina sokunyakaza 2 kanye nesikhathi sokunyakaza 3.
Ijubane lokugcina lokunyakaza 2:
v_t =v_o + ku-
v_t = 10 + (1)(10) = 10 + 10 = 20 m/s

Ijubane lokugcina lokunyakaza 2 (v)_t) = isivinini sokuqala sokunyakaza 3 (v_o) = 20 m/s
Isikhawu sesikhathi sokunyakaza 3:
v_t =v_o + ku-
0 = 20 + (-2)(t)
0 = 20 – 2t
20 = 2t
t = 20 / 2
t = imizuzwana emi-10

Bheka igrafu engenhla.
Ukunyakaza 1: Into ihamba ngesivinini esingaguquki esingu-10 m/s imizuzwana emi-5.
Ukunyakaza 2: Into ishesha imizuzwana eyi-10 kuze kube yilapho ijubane layo lifinyelela ku-20 m/s
Ukunyakaza 3: Into yehliswa ijubane imizuzwana eyi-10 ize ime.
Igrafu efanele yigrafu empendulweni B.
Impendulo efanele ingu-B.

11. Imoto iqala ukuhamba ngendlela eqondile ngesivinini esingaguquki esingu-5 ms.^-1Ngemva kokugcina ijubane layo imizuzwana eyi-10, imoto ishesha kangangokuthi emizuzwaneni emi-5 elandelayo isheshe ibe nesivinini esingu-1 ms.^-2. Bese injini yemoto icishwa ukuze imoto ime ngemva kokuhamba ibanga eliphelele elingamamitha angu-137,5. Ukunyakaza kwemoto kungachazwa ngegrafu yesivinini (v) ngokumelene nesikhathi (t) okufanele...

Ingxoxo
Kuyaziwa ukuthi:
Ukunyakaza 1 = GLB
Isivinini esingaguquki (v) = 5 m/s
Isikhawu sesikhathi (t) = 10 imizuzwana
Ukunyakaza 2 = i-GLBB esheshisiwe
Ijubane lokuqala (v)_o) = isivinini sokunyakaza 1 = 5 m/s
Ukusheshisa (a) = 1 m/s²
Isikhawu sesikhathi (t) = 5 imizuzwana
Ukunyakaza 3 = I-GLBB Enciphile
Ijubane lokugcina (v)_t) = 0 m/s

Ibanga eliphelele elihanjiwe = 137,5 m/s
Okufunwayo: Igrafu ekhombisa ukuhamba kwento
Impendulo:
Ibanga elihanjwa ngokunyakaza 1:
s = vt = (5)(10) = amamitha ayi-50
Ibanga elihanjwa ngokunyakaza 2:
s = v_o t + ½ ku² = (5)(5) + ½ (1)(5)² = 25 + ½ (25) = 25 + 12,5 = amamitha angu-37,5
Ibanga elihanjwa ngokunyakaza 3:
137,5 – (50 + 37,5) = 137,5 – 87,5 = amamitha angu-50

Igrafu inganqunywa ngemva kokwazi isivinini sokugcina sokunyakaza 2 kanye nesikhathi sokunyakaza 3.
Ijubane lokugcina lokunyakaza 2
Ijubane lokugcina lokunyakaza 2 libalwa kusetshenziswa idatha yokunyakaza 2.

v _t = vo _o + at

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

Ijubane lokugcina lokunyakaza 2 (v)_t) = isivinini sokuqala sokunyakaza 3 (v_o) = 10 m/s

Isikhathi sokunyakaza 3

Isikhathi singabalwa ngemva kokuba sekwaziwe ukuthi ijubane lizohamba kancane. Ukubalwa kokwehla kwejubane (a) kanye nesikhathi (t) kusebenzisa idatha yokunyakaza 3.

Ukwehla kwejubane lento enyakazayo 3:

v _t ² = v _o ² + 2 njengoba

0 ² = 10 ² + 2 a (50)

0 = 100 + 100 a

100 = -100 a

a = – 100/100

a = – 1 m/s ²

Isikhawu sesikhathi sokunyakaza 3:

v _t = vo _o + at

0 = 10 + (-1) t

0 = 10 – t

t = imizuzwana emi-10

Bheka igrafu engenhla.

Ukunyakaza 1: Into ihamba ngesivinini esingaguquki esingu-5 m/s imizuzwana emi-10.

Ukunyakaza 2: Into ishesha imizuzwana eyi-5 kuze kube yilapho ijubane layo lifinyelela ku-10 m/s

Ukunyakaza 3: Into yehliswa ijubane imizuzwana eyi-10 ize ime.

Impendulo efanele ngu-D.

Ukunyakaza Okuqondile

12.

Igrafu eseceleni iyigrafu yento ehamba emgqeni oqondile. Ibanga ibanga elihanjwe yinto ephakathi kwemizuzwana engu-0 no-8 li….

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

Ingxoxo
Sebenzisa indlela efanayo nenkinga yangaphambilini, lapho ibanga elihanjiwe = indawo yendawo enomthunzi kugrafu. Bheka igrafu engenhla! Indawo enomthunzi ihlukaniswe ngezigaba ukuze indawo ibalwe kusetshenziswa ifomula eyaziwayo.
Indawo yendiza 1 = indawo kanxantathu = ½ (4-0)(12-0) = ½ (4)(12) = (2)(12) = 24
Indawo yendiza 2 = indawo yesikwele = (8-4)(12-0) = (4)(12) = 48

Ibanga elihanjiwe ngesikhathi sesikhawu semizuzwana engu-8 = 24 + 48 = amamitha angu-72
Impendulo efanele ngu-A.

13.

Naka igrafu isivinini v ngokumelene no-t ngento ehamba emgqeni oqondile ngezansi!
Ibanga elihanjiwe ngemizuzwana eyi-12….

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

Ingxoxo
Lo mbuzo ufana nowangaphambilini. Ngenkathi umbuzo wangaphambilini ubuze ibanga elihanjiwe ngemizuzwana eyi-10, lo mbuzo ubuza ibanga elihanjiwe ngemizuzwana eyi-12.
Indawo yendiza 1 = indawo kanxantathu = ½ (2-0)(4-0) = ½ (2)(4) = 4
Indawo yendiza 2 = indawo yesikwele = (6-2)(4-0) = (4)(4) = 16
Indawo yendiza 3 = indawo kanxantathu = ½ (8-6)(4-0) = ½ (2)(4) = 4
Indawo yendiza 4 = indawo kanxantathu = ½ (10-8)(4-0) = ½ (2)(4) = 4
Indawo yendiza 5 = indawo yesikwele = (12-10)(4-0) = (2)(4) = 8

Ibanga elihanjiwe ngesikhathi sesikhawu semizuzwana eyi-10 = 4 + 16 + 4 + 4 + 8 = amamitha angu-36
Impendulo efanele ngu-D.

Umthombo wombuzo:

Imibuzo Yefiziksi Yezivivinyo Zikazwelonke Zesikole Samabanga Aphezulu/Isikole Samabanga Aphezulu Sokufundela Umsebenzi

Izibonelo zemibuzo efanayo yokunyakaza okuqondile
14. Imoto ihamba emgqeni oqondile ngesivinini esingaguquki esingu-10 m/s. Thola ibanga imoto elihambile ngemva kokuhamba ibanga elingu-10 m/s.
Ingxoxo
Ijubane elingaguquki lamamitha angu-10 ngomzuzwana lisho ukuthi imoto ihamba amamitha angu-10 njalo ngomzuzwana owodwa.
Ngemva kwemizuzwana eyi-2, isithuthuthu sihamba ibanga elingamamitha ayi-2 (10) (10) = 20,
Ngemva kwemizuzwana eyi-3, isithuthuthu sihamba ibanga elingamamitha ayi-3 (10) (10) = 30,
Ngemva kwemizuzwana eyi-10, isithuthuthu sihamba ibanga elingamamitha ayi-10 (10) (10) = 100.
Funda kabanzi ekhasini isibonelo sokunyakaza okuqondile okufanayo

Isibonelo sokunyakaza okuqondile okusheshiswa ngokulinganayo
15. Into eqale iphumule iqala ukuhamba ngesivinini esingaguquki esingu-5 m/s.². Nquma isivinini kanye nebanga elihanjiwe ngemva kwemizuzwana eyi-5.
Ingxoxo
(a) Isivinini ngemva kwemizuzwana emi-5
Ukusheshisa okuqhubekayo okungu-5 m/s² Lokhu kusho ukuthi ijubane likhuphuka ngama-5 m/s njalo ngomzuzwana owodwa. Ngemva kwemizuzwana emibili, ijubane likhuphuka lifike ku-10 m/s. Ngemva kwemizuzwana emihlanu, ijubane likhuphuka lifike ku-25 m/s.
(b) Ibanga elihanjiwe ngemva kwemizuzwana emi-5
Kuyaziwa ukuthi:
Ijubane lokuqala (v)_o) = 0 (into iqale iphumule).
Ukusheshisa (a) = 5 m/s²
Isikhawu sesikhathi (t) = 5 imizuzwana
Kubuziwe: ibanga elihanjiwe (ama)
Impendulo:
s = v_o t + ½ ku² = (0)(5) + ½ (5)(5)²) = 0 + (2,5)(25) = amamitha angu-62,5
Ibanga elihanjiwe ngemva kwemizuzwana emi-5 lingamamitha angu-62,5.

16. Imoto enesisindo esingamakhilogremu angu-400 ihamba emgqeni oqondile ngesivinini sokuqala esingu-72 km/h. Ngemva kokuhamba amamitha ayi-100, isivinini sayo siyakhuphuka sibe ngu-108 km/h. Isikhathi esithathwa yimoto ukuhamba leli banga...
A. umzuzwana owodwa
B. imizuzwana emi-2
C. imizuzwana emi-3
D. imizuzwana emi-4
E. imizuzwana emi-5
Ingxoxo
Kuyaziwa ukuthi:
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 = amamitha angu-100
Kubuziwe: isikhawu sesikhathi (t)?
Impendulo:

17. Igrafu eseceleni ikhombisa ukunyakaza kwemoto ehamba emgqeni oqondile ngesivinini esingaguquki. Ibanga elihanjwa yimoto ngemizuzwana engu-8...

A. 40 m
B. 60 m
C. 80 m
D. 100 m
E. 120 m
Ingxoxo
Kuyaziwa ukuthi:
v_o = 10m/s
v_t = 20m/s
t = imizuzwana emi-8
Kubuziwe: Ibanga elihanjiwe?
Impendulo:

Impendulo efanele ngu-E.

18. Igrafu eseceleni iyigrafu yento ehamba emgqeni oqondile. Ibanga elihanjwe yinto ephakathi kwemizuzwana engu-0 nengu-6...

A. 40 m
B. 45 m
C. 50 m
D. 55 m
E. 60 m
Ingxoxo
Ibanga elihanjiwe = indawo yegrafu (s = vt)
Ibanga elihanjiwe 1 = ½ (10)(3) = (5)(3) = amamitha ayi-15
Ibanga elihanjiwe 2 = (10)(6-3) = (10)(3) = amamitha angu-30
Ibanga eliphelele elihanjiwe:
Amamitha angu-15 + amamitha angu-30 = amamitha angu-45
Impendulo efanele ingu-B

Funda kabanzi ekhasini isibonelo sokunyakaza okuqondile okusheshiswa ngokulinganayo

Isibonelo sokunyakaza kokuwa okukhululekile
19. Umango wawela esiqwini wafika phansi ngemva kwemizuzwana emi-2. Isivinini sesithelo sikamango uma sifika phansi... g = 10 m/s²
Ingxoxo
Uma ukusheshisa ngenxa yamandla adonsela phansi = 10 m/s² Ngakho umango noma into ewa ngokukhululeka ithola ukwanda kwesivinini esingu-10 m/s njalo ngomzuzwana owodwa. Ngemva kwemizuzwana emibili, isivinini sikamango singama-20 m/s.
Funda kabanzi ekhasini isibonelo sokunyakaza kokuwa okukhululekile