1. Jismning yerga tortishish kuchi deb ataladi

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Bog'liq
test 7 sinf

A)8Ns B)5Ns D) 400Ns E)40Ns

9. Jismning tinch holatdan harakatga kelishi paytidagi ishqalanish kuchi...................kuchi deyiladi.

A) sirpanish ishqalanish B) Dumalanish ishqalanish D) tinchlikdagi ishqalanish E) ishqalanish

10. Dumalanish ishqalanish kuchi formulasi nimaga teng?

A)F₁₍₎=

D)F = -kx E) F = mg

11. Massasi 50 t bo'lgan temir yo'l vagoni 9 km/soat tezlik bilan 30 t massali tinch turgan vagonga kelib tirkalgandan keyingi tezligini toping?

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