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A cane filled with water is revolved in a vertical circle of radius 4 m and the water just does not fall down the time period of revolution will be

A cane filled with water is revolved in a vertical circle of radius 4 m and the water just does not fall down the time period of revolution will be

Grade:12th pass

1 Answers

Arun
25750 Points
6 years ago
at the top most position
three forces will act on the water
1 weight in the downward direction
2 normal reaction by bucket in the downward direction
3 centrifugal force in the upward direction
so mg + N =mv2/r
for water just does not fall   N ≥ 0
so mg = mv2/r
v =√gr
so time period T = 2∏r/v
=2*3.14*4 /√4g
=3.14*4 /√9.8
= 4.01

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