Ram and Sham are climbing two different hills of the same height but different inclinations. Sham's hill is steeper than Ram's hill. Who is doing more work in climbing to the top? (Assume that Ram and Sham are of the same weight)
A
Ram
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B
Sham
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C
Both are doing equal work
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D
Depends on the speed of climbing
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Solution
The correct option is C Both are doing equal work Work done is a product of force and displacement. The force, which is equal to the weight, is same for Ram and Sham and the displacement of Ram and Sham, which is equal to height of the hills, is same with reference to the ground. Hence, the work done by both of them would be equal.