Question

A 0.100–kilogram white ball moving with a velocity of 5 meters/second along the positive x–axis hits a stationary blue ball of the same mass. Energy is not necessarily conserved, but momentum is. After the collision, the white ball moves off at an angle of 20° with respect to the positive x–axis and at a velocity 3.5 meters/second. The blue ball moves at an angle of –35° and a velocity of 2.1 meters/second. What is the final y–momentum of the system?

Answer 1

0.0 kilogram*meter/second I think

Answer 2

Answer: 0

Step-by-step explanation:

It is given that in the given system, the energy is not necessarily conserved but momentum is conserved.

This means that the initial momentum is equal to the final momentum. The initial momentum in the y-axis is zero as the ball is moving in the x-axis direction. Hence, the final momentum in the y-axis direction would be zero.