If a force of 250 N act on body, the momentum acquired is 125 kg-m/s. What is the period for which force acts on the body

0.5 sec

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0.2 sec

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0.4 sec

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0.25 sec

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Solution

The correct option is A
0.5 sec

Change in momentum = Impulse
$\Rightarrow △ p = F \times △ t \Rightarrow △ t = \frac{△ p}{F} = \frac{125}{250} = 0.5 s e c$

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If a force of 250 N act on body, the momentum acquired is 125 kg-m/s. What is the period for which force acts on the body

The correct option is A 0.5 sec Change in momentum = Impulse ⇒△p=F×△t⇒ △t=△pF=125250=0.5 sec

The correct option is A
0.5 sec

Change in momentum = Impulse
$\Rightarrow △ p = F \times △ t \Rightarrow △ t = \frac{△ p}{F} = \frac{125}{250} = 0.5 s e c$