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Question
Potential energy possessed by an object of mass m and raised to a height 2h above the earth's surface is:
Potential energy possessed by an object of mass m and raised to a height 2h above the earth's surface is:
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Solution
The correct option is D 2mgh
Let m be the mass of the body, h be the height at which it is raised and g be the acceleration due to gravity.
Potenetial energy, P.E = mgh
Given h = 2h
Therefore, P.E = mg2h or 2mgh
2mgh
Let m be the mass of the body, h be the height at which it is raised and g be the acceleration due to gravity.
Potenetial energy, P.E = mgh
Given h = 2h
Therefore, P.E = mg2h or 2mgh
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