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A rigid ball of mass m strikes a rigid w...

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

A

`(mV)/(3)`

B

mV

C

2 mV

D

`(mV)/(2)`

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The correct Answer is:
B
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