a man pushes a drum of oil 10kg up an incline oa . oa is 5m and ab is 3m what is the potential energy of the drum at a

PE = mgh

Since you imply that A is at the top of the ramp, that must mean that O is at the bottom of the ramp, so AB is the height.

To determine the potential energy of the drum at point A, we need to use the formula for gravitational potential energy:

Potential Energy = mass * acceleration due to gravity * height

Mass of the drum = 10 kg
Acceleration due to gravity = 9.8 m/s^2 (approximate value)
Height from point O to point A = 5 m

Let's substitute these values into the formula:

Potential Energy = 10 kg * 9.8 m/s^2 * 5 m
Potential Energy = 490 joules

Therefore, the potential energy of the drum at point A is 490 joules.