The image below gives an overview of a cue ball bouncing of…

The image below gives an overview of a cue ball bouncing of the rail of a pool table. Let us assume that the rotation of the ball is irrelevant to this problem. The ball has a mass of 0.25 kg, an initial speed of 3 m/s and hits the rail elastically, such that the speed is maintained and

A 7 kg dog stands at the far end of a 2.5 m long boat of mas…

A 7 kg dog stands at the far end of a 2.5 m long boat of mass 15 kg, a total distance of D= 10 m from the shore. He then walks to the other end of the boat, towards the shore. Assuming no friction between the boat and the water, by how much did the boat move from its original position? Report your answer as positive if it moved away from the shore.

A 10 g bullet moving directly upward at 900 m/s strikes and…

A 10 g bullet moving directly upward at 900 m/s strikes and passes through the center of mass of a 5.0 kg block initially at rest. The bullet emerges from the block moving directly upward at 300 m/s. To what maximum height does the block then rise above its initial position?