Question

A force of 50 N acts on a body for 10 sec. What is the change in momentum.

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

The change in momentum of the body is given as $500 kgms^-^1$.

Explanation:

First, let's define force in terms of energy.

Force is defined as the rate of change of momentum per unit time i.e.

$F=\frac{dP}{dt}$           (1)

Where,

F=force

dP=change in momentum

dt=change in time

From the question we have,

F=50N

t=10sec

By substituting the required  values in equation (1) we get;

$50=\frac{dP}{10}$

$dp=50\times 10=500 kgms^-^1$

Hence, the change in momentum of the body is given as $500 kgms^-^1$.