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Variation of G Due to Height and Depth

An oil drop o...

Question

An oil drop of mass m falls through a medium that offers a viscous drag force F. If the velocity of the drop is constant it means that

A

F > mg

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B

F < mg

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C

F = m g

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D

None of the above

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Solution

The correct option is D $F = m g$
If 'v' becomes constant, i.e., acceleration is zero and hence net force on it is zero.

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