Question

Predicting kinetic energy from gravitational energy?

Answer 1

GPE = mgh, m = 5kg, h= 1km g = 9.8 m/s^2

Answer 2

v = d/t for calculating time: s = 1/2 at^2

Answer 3

KE = 1/2 mv^2

Answer 4

or it can't work?

Answer 5

What is the actual situation? Usually in questions, potential energy is converted to kinetic energy as in a rollercoaster example.