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Momentum

A bullet of m...

Question

A bullet of mass $0.1 K g$ moving horizontally with a velocity of $20 m / s$ strikes a target and brought to rest in $0.1 s$ . Find the impulse and average force of impact.

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Solution

$I = F t$
= $△ P$
$△ P = m △ v = 0.1 \times 20$ =2N-S
$F = \frac{△ P}{t}$ = $\frac{2}{0.1}$ = 20N

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