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If  is the acceleration due to gravity on earth’s surface, the gain of the potential energy of an object of mass  raised from the surface of the earth to a height equal to the radius  of the earth is

a)

b)

c)

d)



Question ID - 55014 | SaraNextGen Top Answer

If  is the acceleration due to gravity on earth’s surface, the gain of the potential energy of an object of mass  raised from the surface of the earth to a height equal to the radius  of the earth is

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

The potential energy of an object at the surface of the earth

The potential energy of the subject at a height  from the surface of the earth

Hence, the gain in potential energy of the object

But we know that

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