#### A rigid ball of mass m strikes a rigid, wall at  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 Option 1) mV Option 2) 2mV Option 3) Option 4)

As we learnt in

Law of Conservation of Momentum -

then

- wherein

Independent of frame of reference

After doing components,

Impulse =

Option 1)

mV

Correct

Option 2)

2mV

Incorrect

Option 3)

Incorrect

Option 4)

Incorrect

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