Mienzaniso yemibvunzo pamusoro pemutemo wechipiri waNewton

Mienzaniso 8 yeMibvunzo yeMutemo wechipiri waNewton

1. Chinhu chine huremu hwe1 kg chinofamba nekumhanya kwakasimba kwe5 m/s²Simba rinoita kuti chinhu chifambiswe rakakura sei?
Kukurukurirana
Zvinozivikanwa :
Huremu hwechinhu (m) = 1 kg
Kukurumidzisa (a) = 5 m/s²
Akabvunzwa : simba rinobuda rinofambisa chinhu
Jawab :
Mutemo weChipiri waNewton unoti kana paine simba rinobuda richishanda pachinhu, chinhu chichakurumidza, uko hukuru hwekumhanya hunoenderana zvakananga nehukuru hwesimba rinobuda uye hunoenderana nehuremu hwechinhu. Kutungamira kwekumhanya kwechinhu kwakafanana nekutungamira kwesimba rinobuda. Pamasvomhu:
Tsananguro yefomura:
Sigma F = simba rinobuda rinonzi simba rese (mayuniti epasi rose ari kg m/s)² (anozivikanwawo saNewton)
m = huremu hwechinhu (chikamu chepasi rose ikirogiramu, kg yakapfupikiswa)
a = kumhanyisa (chikamu chepasi rose chine mita pasekondi imwe chete, chakapfupikiswa m/s)²)
Saka simba rinoita kuti chinhu chifambiswe rinobuda nderinotevera:
2. Huremu hwebhuroko = 1 kg, F = 2 Newton. Hukuru uye kutungamira kwekumhanya kwebhuroko nde…
Kukurukurirana
Zvinozivikanwa :
Huremu hwebhuroko (m) = 1 kg
Simba (F) = 2 Newtons
Akabvunzwa : hukuru uye gwara rekumhanya kwebhuroko (a)
Jawab :
Kutungamira kwekukurumidzira kweblock = kutungamira kwesimba F

3. Huremu hwebhuroko = 2 kg, F₁ = 5 Newton, F₂ = 3 Newton. Hukuru uye divi rekumhanya kwebhuroko iri…
Kukurukurirana
Zvinozivikanwa :
Huremu hwebhuroko (m) = 2 kg
F₁ = 5 Newton
F₂ = 3 Newton
Akabvunzwa : hukuru uye gwara rekumhanya kwebhuroko (a)
Jawab :
4. Huremu hwebhuroko = 2 kg, F₁ = 10 Newton, F₂ = 1 Newton. Hukuru uye divi rekumhanya kwebhuroko iri…
Kukurukurirana
Zvinozivikanwa :
Huremu hwebhuroko (m) = 2 kg
F₂ = 1 Newton
F₁ = 10 Newton
F_1x =F₁ kusvika 60^o = (10)(0,5) = 5 Newton
Akabvunzwa : hukuru uye gwara rekumhanya kwebhuroko (a)
Jawab :
Kutungamira kwekukurumidzisa block = kutungamira kwesimba rinobuda = kutungamira kwaF_1x

5. F₁ = 10 Newton, F₂ = 1 Newton, m₁ = 1 kg, m₂ = 2 kg. Hukuru uye divi rekumhanya kwebhuroko iri…

Kukurukurirana
Zvinozivikanwa :
Huremu hwebhuroko 1 (m₁) = 1 kg
Huremu hwebhuroko 2 (m₂) = 2 kg
F₁ = 10 Newton
F₂ = 1 Newton
Akabvunzwa : hukuru uye gwara rekumhanya kwebhuroko (a)
Jawab :

Kutungamira kwekukurumidzisa block = kutungamira kwesimba rinobuda = kutungamira kwaF₁

[Chirungu : Mutemo wechipiri waNewton wekufamba - matambudziko nemhinduro]

6. Masimba akati wandei anoshanda pachinhu chine huremu hwe5 kg sezvakaratidzwa mumufananidzo. Kana simba rekukweshana riri pakati pechinhu nebhodhi riri zero, saka kukurumidza kunoitika nechinhu chacho...

A. 1 m/s²
B. 4 m/s²
C. 5 m/s²
D. 9 m/s²

Kukurukurirana

Zvinozivikanwa kuti:
Chimiro 1 (F)₁) = 15 Newton (kurudyi)
Chimiro 2 (F)₂) = 10 Newton (kurudyi)
Chimiro 3 (F)₃) = 20 Newton (nzira inoenda kurudyi)
Huremu hwechinhu (m) = 5 kg
Mubvunzo: Kukurumidza kunoitika nechinhu (a)
Mhinduro:

Simba rinobuda:
∑F = F₁ +F₂ - F₃
∑F = 15 + 10 – 20
∑F = 25 - 20
∑F = 5 Newton
∑F = 5 kg m/s²
Kutungamira kwesimba rinobuda kwakafanana nekutungamira kwesimba 1 nekutungamira kwesimba 2, kureva kuruboshwe.
Fomura yechipiri yemutemo waNewton:
∑F = ma
5 kg m/s² = (5 kg) a
5 m / s² = (5) a
a = (5 m/s²/ 5
a = 1 m/s²
Kukura kwekumhanya kwechinhu ichi i1 m/s²Nzira yekukurumidzisa chinhu = nzira yekufamba kwechinhu = nzira yesimba rinobuda = kuruboshwe
Mhinduro chaiyo ndiA.

7.

Tarisa mufananidzo wemasimba ari kushanda pachinhu chinotevera! Kana huremu hwechinhu chacho huri 2 kg, kukurumidza kuchaitika pachinhu chacho ndekwekuti...

A. 12,5 m/s²
B. 7,5 m/s²
C. 5,0 m/s²
D. 2,5 m/s²

Kukurukurirana
Zvinozivikanwa kuti:
Chimiro 1 (F)₁) = 10 Newton (kurudyi)
Chimiro 2 (F)₂) = 10 Newton (nzira inoenda kurudyi)
Chimiro 3 (F)₃) = 5 Newton (nzira inoenda kurudyi)
Huremu hwechinhu (m) = 2 kg
Mubvunzo: Kukurumidza kunoitika nechinhu (a)
Mhinduro:
Simba rinobuda:
∑F = F₂ +F₃ - F₁
∑F = 10 + 5 – 10
∑F = 15 - 10
∑F = 5 Newton
∑F = 5 kg m/s²
Kutungamira kwesimba rinobuda kwakafanana nekutungamira kwesimba 2 uye kutungamira kwesimba 3 kuri kurudyi.
Fomura yechipiri yemutemo waNewton:
∑F = ma
5 kg m/s² = (2 kg) a
5 m / s² = (2) a
a = (5 m/s²/ 2
a = 2,5 m/s²
Kukura kwekumhanya kwechinhu ichi i2 m/s². Kutungamira kwekumhanya kwechinhu = kutungamira kwekufamba kwechinhu = kutungamira kwesimba rinobuda = kurudyi
Mhinduro chaiyo ndiD.

8. Masimba akati wandei anoshanda pachinhu B sezvakaratidzwa mumufananidzo.
Kana huremu hwechinhu B = 4 kg, kukurumidza kunoitika neB ndiko….
A. 2,5 m/s²
B. 4,0 m/s²
C. 5,0 m/s²
D. 9,0 m/s²
Kukurukurirana
Zvinozivikanwa kuti:
Chimiro 1 (F)₁) = 20 Newton (nzira inoenda kurudyi)
Chimiro 2 (F)₂) = 6 Newton (nzira inoenda kurudyi)
Chimiro 3 (F)₃) = 10 Newton (kurudyi)
Huremu hwechinhu (m) = 4 kg
Mubvunzo: Kukurumidzisa kwakaitika neB (a)
Mhinduro:
Simba rinobuda:
∑F = F₁ +F₂ - F₃
∑F = 20 + 6 – 10
∑F = 26 - 10
∑F = 16 Newton
∑F = 16 kg m/s²
Kutungamira kwesimba rinobuda kwakafanana nekutungamira kwesimba 1 uye kutungamira kwesimba 1 kuri kurudyi.
Fomura yechipiri yemutemo waNewton:
∑F = ma
16 kg m/s² = (4 kg) a
16 m / s² = (4) a
a = (16 m/s²/ 4
a = 4 m/s²
Kukura kwekumhanya kwechinhu ichi i4 m/s². Kutungamira kwekumhanya kwechinhu = kutungamira kwekufamba kwechinhu = kutungamira kwesimba rinobuda = kurudyi
Mhinduro chaiyo ndeiyi B.