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