a ball of mass 1oog falls from a height of 5m onto a floor and rebounds to a height of 3m . what energy is lost as a result of the impact on the floor ?

Answer 1

m g H1 - m g H2 = m g (5-3) = 2 m g
= 2 (mass in kg, I cam not sure what you typed)(9.81)

Answer 2

2j