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Standard XII

Physics

Instantaneous Force and Impulse

A ball of mas...

Question

A ball of mas $150 g$ , moving with an acceleration $20 m / s^{2}$ , is hit by a force which acts on it for $1$ sec. The impulsive force is:-

3 N s

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1 N s

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05 N s

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1.2 N s

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Solution

The correct option is A $3 N s$
$f o r c e = m a s s x a c c e l e r a t i o n$
$F = m a$
$F = 150 / 1000 x 20$
$F = 3 N$
$I m p u l s e = F o r c e \times T i m e$
$I m p u l s e = 3 \times 1 => 3 N s$
Hence,
option $A$ is correct answer.

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A ball of mas 150g, moving with an acceleration 20m/s2, is hit by a force which acts on it for 1sec. The impulsive force is:-

The correct option is A 3Nsforce=massxaccelerationF=maF=150/1000x20F=3NImpulse=Force×TimeImpulse=3×1=>3NsHence,option A is correct answer.

A ball of mas $150 g$ , moving with an acceleration $20 m / s^{2}$ , is hit by a force which acts on it for $1$ sec. The impulsive force is:-

The correct option is A $3 N s$
$f o r c e = m a s s x a c c e l e r a t i o n$
$F = m a$
$F = 150 / 1000 x 20$
$F = 3 N$
$I m p u l s e = F o r c e \times T i m e$
$I m p u l s e = 3 \times 1 => 3 N s$
Hence,
option $A$ is correct answer.