Question

If a force of 200 N acting on a moving body in opposite direction of motion for 5 s, then magnitude of change in momentum will be​

Answer 1

Force:

• rate of change of momentum.
• measures the impact of a momentum(p) applied for a time interval(t)

$\implies\bf \vec{F} = \dfrac{d\vec{p}}{dt}$

$\implies\rm \vec{F} = \dfrac{\Delta p}{\Delta t}$

$\to\rm 200 = \dfrac{\Delta p}{5}$

$\to\rm \Delta p = 200\times 5 = 1000\: Ns$

★ magnitude of change of momentum is 10³ Ns.

Answer 2

Explanation:

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Force:

rate of change of momentum.

measures the impact of a momentum(p) applied for a time interval(t)

$\implies\bf \vec{F} = \dfrac{d\vec{p}}{dt}$

$\implies\rm \vec{F} = \dfrac{\Delta p}{\Delta t}$

$\to\rm 200 = \dfrac{\Delta p}{5}$

$\to\rm \Delta p = 200\times 5 = 1000\: Ns$

★ magnitude of change of momentum is 10³ Ns.

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