Question

An object of mass 5kg is dropped from a height of 10m.find its kinetic energy when it is halfway down.

Answer 1

1/4 × Mass × Acc. due to gravity × Height
= 250 Joules
Answer!

Answer 2

k.e. = 1/2 mgh ( in this case as the ball is being dropped )

= 1/2 * 5 kg* 9.8 (ms -2 )* 10m

= 245 joules