Question

a ston of weight 0.25kgf is projected vertically upward such that it attains a height of 40M.calculate the amount of energy in the stone at the highest point. (take 1kgf=10N)

Answer 1

At heights point it has only potential energy

Energy at highest point = mgh
= 0.25kg * 10 * 40
= 100 J

Answer 2

Answer:

Mass of the stone =0.25kg

Height of the stone = 40m

the energy stored in the stone =P.E

P.E= mg

=》P.E= 0.25×10×40

=》 =100 J

I hope it'll help u