1.

A gun of mass 10 kg fires 4 bullets per second. The mass of each bullet is 20 g and the vlocity of the bullet when it leaves the gun is 300 ms^(-1) The force required to hold the gun while firing is :

Answer»

6N
8N
24 N
240 N

Solution :Here the force applied = Rate of CHANGE of momentum`F=(Deltap)/(Deltat)n.mu upsilon=4xx20xx10^(-3)xx300=24N`
(C) is the choice,


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