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NEET2016PhysicsCenter of Mass, Momentum and CollisionActual

A rigid ball of mass, m strikes a rigid wall at 60 o 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

Options

  1. Am V
  2. B2 m V
  3. Cm V 2
  4. Dm V 3

Correct answer

A. m V

Step-by-step solution

J → = P → 2 - P → 1 = 2 m V cos θ = m V .

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