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NEET2004PhysicsCenter of Mass, Momentum and CollisionActual

A ball of mass 10 g moving with acceleration of 20 ~m / s ^2 is hit by a force which acts on it for 0.1 sec . The impulsive force is

Options

  1. A1.2 Ns
  2. B0.3 Ns
  3. C0.1 Ns
  4. D0.5 Ns

Correct answer

B. 0.3 Ns

Step-by-step solution

Here: Mass of the ball m=150 ~g aligned & time =0.15 ~kg & Acceleration of the ball =20 ~m / s ^2 & dt = 0.1 ~s aligned Force, F=m a=0.15 20=3 ~N Now impulsive force =F d t=3 0.1=0.3 Ns

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