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# Solve! A body of mass M hits normally a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is

A body of mass M hits normally a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is

• Option 1)

MV

• Option 2)

1.5MV

• Option 3)

2MV

• Option 4)

Zero

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As we discussed in concept

Impulse -

$\vec{I}=\int_{t_{1}}^{t_{2}}\vec{F}\cdot dt$

$\ast\left [ MLT^{-1} \right ]$

- wherein

Impulse = Change in momentum

$I=mv-(-mv)=2mv$

Option 1)

MV

This option is incorrect.

Option 2)

1.5MV

This option is incorrect.

Option 3)

2MV

This option is correct.

Option 4)

Zero

This option is incorrect.

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