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Question

# If in a stationary lift a man is standing, with a bucket full of water having a hole at its bottom. The rate of flow of water through this hole is R0. If the lifts starts to move up and down with same acceleration and rates of flow of water are Ru and Rd, then

A
Ro>Ru>Rd
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B
Ru>Ro>Rd
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C
Rd>Ro>Ru
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D
Ru>Rd>Ro
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Solution

## The correct option is B Ru>Ro>RdRate of flow will be more when lift will move in upwarddirection with some acceleration because the net downward the pull will be more and vice-versa. Fupward=m(g+a) and Fdownward=m(g−a)

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