Question

Solve with formular . a man pushes a drum of oil 10kg up an incline,OA.if OA is 5m and AB is 3m.What is the potential energy?

Answer 1

Solve it?

Answer 2

then AB = 4m, making
PE = mgh = 10 * 9.81 * 4 = ______

and that is some steep ramp!
and a very tiny drum ...

Answer 3

M=10kg h=3m g=10m/s
Potential Energy =mgh=10x10x3=300Joules.