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 of the drum at A.

294 Joules

Explanation:

From the question;

Mass of the drum is 10 kg The length of inclined surface, OA is 5 m The final height of the drum on the plane AB is 3 m

We are required to determine the potential energy of the drum at A

We know that potential energy is given by the formula;

Potential energy = mgh

where m is the mass, g is the gravitational pull and h is the height

Taking g as 9.8 N/kg

Then;

Potential energy = 10 kg * 9.8 N/kg * 3 m

= 294 Joules

Thus, the potential energy of the drum at A is 294 Joules