A man pulls a drum of oil 10kg upon an inclined plane OA.if OA=5m and AB=3m as shown below in a triangle. Calculate the A the potential energy at A and workdone by the man.

6 answers

If AB is vertical, then change Potential energy=mgh=10*9.8*3 joules
The man supplied that work.

am not understand

12.5j

At the back of my txt bk the ans is 300j in each case

300j

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