Water in a bucket is whirled in a vertical circle with a string attached to it. The water does not fill down even when the bucket is inverted at the top of its path. We conclude that in this position

Options

A. `mg=(mv^(2))/(r)`
B. mg is greater than `=(mv^(2))/(r)`
C. mg is not greater than `=(mv^(2))/(r)`
D. none of these

Answer

C

Explanation

`(mv^(2))/(r)gtmg`
At highest point `mg=(mv^(2))/(r)-N` .