Asked by Anna

A 2.0 kg rock falls from a height of 25 m to a point 20 m above the ground.
a) how much potential energy does it lose?
b) How much kinetic energy does it gain?

Thanks.

Answers

Answered by bobpursley
It loses mgh PE
it gains mgh KE

You can calculate those.
You can also calculate the KE from the final velocity .
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