Q. Two 0.40 kg soccer balls collide elastically in a head-on collision. The first ball starts at rest, and the second ball has a speed of 3.5 m/s. After the collision, the second ball is at rest. What is the final speed of the first ball?
Q. Blocks with masses of 2.0 kg , 3.0 kg , and 6.0 kg are lined up in a row on a frictionless table. All three are pushed forward by a 53 N force applied to the 2.0 kg block.
How much force does the 3.0 block exert on the 6.0 block?
How much force does the 3.0 block exert on the 2.0 block?