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

Dear pallavi

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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Badiuddin

Dear Student,
Please find below the solution to your problem.

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
Thanks and Regards