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Introduction

A ball of mas...

Question

A ball of mass 150g starts moving with an acceleration of 20 $m / s^{2}$ . When hit by a force, which acts on it for 0.1 sec. The impulsive force is

0.5 N-s

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0.1 N-s

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0.3 N-s

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1.2 N-s

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Solution

The correct option is C
0.3 N-s

Impulse = Force ´ time = m a t
$= 0.15 \times 20 \times 0.1 = 0.3 N - s$

Suggest Corrections

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