Question

A ball with a mass of 4 kg is initially traveling at 2 m/s and has a 5 N force applied for 3 s. What is the initial momentum of the ball?

Answer 1

The initial momentum of the ball is 8 kg-m/s.

Step-by-step explanation:

Given that,

Mass of the ball is 4 kg

Initial speed of the ball is 2 m/s

Force applied to the ball is 5 N for 3 seconds

It is required to find the initial momentum of the ball. Initial momentum means that the product of mass and initial velocity of the ball. It is given as :

`p_i=mu\\\\p_i=4\ kg* 2\ m/s\\\\p_i=8\ kg-m/s`

So, the initial momentum of the ball is 8 kg-m/s.