Two objects on moon, of different masses are released from same height at some instant simultaneously and are falling freely. Both would:
A
have same velocities at any instant
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B
have different accelerations
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C
experience forces of same magnitude
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D
undergo a change in their inertia
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Solution
The correct option is A have same velocities at any instant Free fall meas the only force acting on the body is the gravitational force. Since the masses are only under the effect of gravity, they will have the same accelerations. According to Newton's Law of Motion v=u+at. Here u=0, and a is acceleration due to gravity. Hence for the same time, the velocities will be equal.