A person is painting his house walls. He stands on a ladder with a bucket contaiing paint in one hand and a brush inother.Suddenly the bucket slips from his hand and falls down on the floor. If the bucket with the paint had a mass of 6.0 kg andwas ast a height of 2.0 m at the time it slipped, how much gravirtational potential energy is lost together with the paint?

Answer

A

Explanation

`m=6, h=2m`
`P.E. at a height, h=mgh`
`=6xx(9.8)xx2`
`=117.6J`
P.E. at floor =0
Loss in P.E. `=117.6-0`
`=117.6J~~118J`