A body of 200g begins to fall from a height where its potential energy is 80J. Its velocity at a point where kinetic and potential energies are equal to

A body of 200g begins to fall from a height where its potential energy

1.	A body of 200g begins to fall from a height where its potential energy is 80J. Its velocity at a point where kinetic and potential energies are equal to
Answer» `10 sqrt8 m//s` `4 m//s` `400 m//s` `20 m//s` ANSWER :D