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JEE Main & Advanced Physics NLM, Friction, Circular Motion Question Bank Second Law of Motion

  • question_answer
    A player caught a cricket ball of mass 150 gm moving at the rate of 20 m/sec. if the catching process be completed in 0.1 sec the force of the blow exerted by the ball on the hands of player is                            [Kerala PET 2005]

    A)             0.3 N

    B)               30 N

    C)             300 N 

    D)             3000 N

    Correct Answer: B

    Solution :

                    Force exerted by the ball              Þ \[F=m\ \left( \frac{dv}{dt} \right)=0.15\times \frac{20}{0.1}=30\ N\]


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