PhysicsA rigid ball of mass m strikes a rigid wall at 60° and gets reflected without loss of speed as shown in the fiugre below. The value of impulse imparted by the wall on the ball will be

A rigid ball of mass m strikes a rigid wall at 60° and gets reflected without loss of speed as shown in the fiugre below. The value of impulse imparted by the wall on the ball will be

  1. A

    mV

  2. B

    2mV

  3. C

    mV2

  4. D

    mV3

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    Solution:

     Impulse =ΔP=2mVcosθ=2×m×Vcos60=mV

    velocity along the wall vsinθ remain same before and after the collision.

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