EAMCET Engineering 2007 Solved Paper

Section: Physics

Question : 4 of 160

Marks: +1, -0

A rifle of 20‌kg mass can fire 4 bullets per second. The mass of each bullet is 35×10−3‌kg and its final velocity is 400ms−1. Then what force must be applied on the rifle so that it does not move backwards while firing the bullets ?

80N
28N
−112N
−56N

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