Q. When you lift a bowling ball with a force of 85 , the ball accelerates upward with an acceleration . If you lift with a force of 96 , the ball's acceleration is 2.
Find the weight of the bowling ball.
Q. Two identical freight cars roll without friction (one at 1 m/s, the other at 2 m/s) toward one another on a level track. They collide, couple, and roll away together with a combined momentum of ? m/s.