Conservation of Linear Momentum

AP Physics 1· difficulty 4/5

A 0.02 kg bullet at 400 m/s passes through and emerges from a 1 kg block at rest at 100 m/s. The block's final speed is

A
$7$
B
$8$
C
$4$
D
$6$
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Explanation

0.02\cdot 400 = 0.02\cdot 100 + 1\cdot v

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AP Physics 1 · Conservation of Linear Momentum Practice Question | Acemy