Conservation of Energy

1

What is the kinetic energy of a 5 kg mass travelling at 5  m\,s^{-1}?

2

What is the mass of a body with 125 J of {E_K} travelling at 10 m\,s^{-1}?

3

What is the gain in potential energy of a 200 kg mass, 1.5 m above the ground?

4

At what height is a 20 kg mass when it has gained 588 J of E_{p} on Earth?

5

Assuming no energy losses, how much kinetic energy does a 5 kg mass have when dropped from a 10 m high building?

6

What is the speed of a 5 kg mass on reaching the ground when dropped from a 10m high building?

7

If a 0.5 kg body is propelled directly upwards at 50 m\,s^{-1}, what height will it reach?