Kinematika

Question 1

Gorizontal otilgan jism tezligining yo‘nalishi 30° ga burilgan paytda uning tangensial tezlanishi (m/s$^2$) nimaga teng bo‘ladi?

Accepted Answer

5

Answer

8,7

Answer

10

Answer

2,5

Question 2

Avtomobilning boshlang‘ich tezligi 10 m/s, tezlanishi $-2$ m/s$^2$ ga teng. U qancha (m) masofa bosib o‘tib to‘xtashini aniqlang.

Accepted Answer

25

Answer

100

Answer

20

Answer

50

Question 3

Yerdan gorizontga nisbatan $\alpha$ burchak ostida $\upsilon_0$ tezlik bilan otilgan jismning uchish vaqti ifodasini toping.

Accepted Answer

$\frac{2\upsilon_0\sin\alpha}{g}$

Answer

$\frac{\upsilon_0\sin\alpha}{g}$

Answer

$\frac{\upsilon_0^2\cdot\sin^2\alpha}{g}$

Answer

$\frac{\upsilon_0^2\cdot\sin 2\alpha}{g}$

Question 4

Quyida jism koordinatasining vaqtga bog‘lanish grafigi berilgan. Jismning ko‘chishini (m) aniqlang.

Accepted Answer

0

Answer

12

Answer

36

Answer

$-6$

Question 5

Grafikda to‘g‘ri chiziqli harakatlanayotgan jism tezligining o‘zgarishi tasvirlangan. Grafikning BC qismida jism bosib o‘tgan masofani (m) toping.

Accepted Answer

337,5

Answer

475

Answer

425,5

Answer

400

Question 6

Vagonning tezlanishi 36000 km/h$^2$. Bu necha m/s$^2$?

Accepted Answer

2,8

Answer

1,4

Answer

0,28

Answer

0,55

Question 7

Baland minora tomidan jism 10 m/s tezlik bilan tik yuqoriga otildi. Bu jismning 3 s dagi ko‘chishini (m) toping.

Accepted Answer

$-15$

Answer

$-45$

Answer

$-30$

Answer

$-40$

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