1. A light object and a heavy object have the same kinetic energy. Which has the greater momentum?..

1. A light object and a heavy object have
the same kinetic energy. Which has the greater momentum? Explain.

2. When a person jumps from a tree to the
ground, what happens to the momentum of the person upon striking the ground?

3. Explain, on the basis of conservation of
momentum, how a fish propels itself forward by swishing its tail back and
forth.