Question

If a 2-kg ball is thrown through the air at 20 m/s what is he momentum of the ball?

Answer 1

momentum is mass x velocity: 2kg x 20m/s = 40 kg/m/s

Answer 2

Answer: P =40 kg*m/s

Explanation:  If we ignore the effects of gravity and air resistance, we can think that the ball is moving at 20m/s constantly.

We know that the moment of some object can be calculated as:

P = m*v

where P is the moment, m is mass and v is the velocity of the object.

Then, in this case, we have:

P = 2kg*20m/s = 40 kg*m/s

This is the momentum of the ball.