Question

A ball is raised to a height of 30.0m above the ground. What would its velocity be when it has fallen to a height of 15.0m above the ground. (You must solve this as a conservation of energy problem, and can do it in one step!) Any help would be appreciated..

Answer 1

Nvm I found out how to solve it.

Answer 2

gravitational potential energy becomes kinetic energy

m g h = 1/2 m v^2

v = √(2 g h) = √(2 * 9.81 * 15.0)