A rigid ball of mass, m strikes a rigid wall at 60 o and gets reflected without any loss of speed as shown…

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

 

  1. mV
  2. 2mV
  3. mV2
  4. mV3

Solution


J→=P→2-P→1=2mVcosθ=mV.

Asked in: NEET 2016 (Phase 2)

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