Question

An object of mass m when raised to height h possesses potential energy of 200j . Find the new potential energy if the same height is raised to height h/4

Answer 1

P.E. of an object=mgh and P1 is first P.E. and P2 is new P.E. given that P1=200j then
P1=mgh.... 200=mgh i.e. h=200/mg... now P2=mg(h/4)=(1/4)×mg×(200)/mg=50j

Answer 2

Answer:

the potential energy will be 50 joules