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Question

If we drop three watermelons weighing 2 kg, 4 kg and 6 kg respectively from the same height and at the same time, which one of it will reach the ground first? (Given: negligible air resistance)


A

Watermelon weighing 2 kg

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B

Watermelon weighing 4 kg

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C

Watermelon weighing 6 kg

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D

All three will reach at the same instant.

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Solution

The correct option is D

All three will reach at the same instant.


If G is universal gravitational constant and Me is the mass of earth and Re is the radius of earth then acceleration due to gravity g would be:
g=G MeR2e
So, the acceleration due to gravity is independent of the mass of the body. Hence, all the bodies will hit the ground at the same time.


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