Question

A body of mass 20 kg dropped from 5m height to ground level. Calculate its change in energy​

Answer 1

Answer:

Answer

Correct option is

A

400 J

when the body is released from a height of 2 meters then all the potential energy will be converted to kinetic energy.

assuming base as a reference

mgh+0=K.E.+0

so K.E.=400J