Alex throws a 0.15-kg rubber ball down onto the floor. the ball's speed just before impact is 6.5 m/s and just after is 3.5 m/s. what is the change in the magnitude of the ball's momentum? a. 0.09 kg*m/s b.1.5 kg*m/s c. 4.3 kg*m/s d. 4.3 kg*m/s

Change in ball's momentum is 1.5 kg-m/s.

Explanation:

It is given that,

Mass of the ball, m = 0.15 kg

Speed before the impact, u = 6.5 m/s

Speed after the impact, v = -3.5 m/s (as it will rebound)

We need to find the change in the magnitude of the ball's momentum. It is given by :

So, the change in the ball's momentum is 1.5 kg-m/s. Hence, this is the required solution.

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.