Question

A cinder block is sitting on a platform 20m high. It weighs 7.9kg. The block has

_____________ energy. Calculate it.

Answer 1

Height=h=20m

Mass=m=7.9kg

`\\ \rm\longmapsto P.E=mgh`

`\\ \rm\longmapsto P.E=20(10)(7.9)`

`\\ \rm\longmapsto P.E=20(79)`

`\\ \rm\longmapsto P.E=1580J`