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Questions  >>  EAMCET  >>  Physics
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Q)

A rifle of 20 kg mass can fire 4 bullets per second. The mass of each bullets per second. The mass of each bullet is 35×103kg and its final velocity is 400ms1. Then what force must be applied on the rifle so that it does not move backwards while firing the bullets?

(a)80N(b)28N(c)112N(d)56N
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