Question

What will be the change in momentum caused by a net force of 120N acting on an object for 2 seconds?

Answer 1

The change in  momentum is 240 kgm/s

Explanation:

Given:

Force, F = 120N

Time, dt = 2 sec

Change in momentum, dP = ?

We know,

$F = \frac{dP}{dt}$

On substituting the value we get:

$120 = \frac{dP}{2}\\ \\dP = 240 kgm/s$

Therefore, change in  momentum is 240 kgm/s