A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots horizontally , in 5 s. Each bullet has a mass of 10 g with a muzzle velocity of . The final velocity acquired by the person and the average force exerted on the person are
As discussed in
Work Energy Theorem -
Work done by all the forces acting on a particle equal to change in kinetic energy.
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From work energy theorem
Option 1)
This solution is incorrect
Option 2)
This solution is incorrect
Option 3)
This solution is correct
Option 4)
This solution is incorrect