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Water in a bucket tied with rope is whir...

Water in a bucket tied with rope is whirled around in a vertical circle of radius 0.5 m. Calculate the minimum velocity at the lowest point so that the water does not spill from it in the course of motion.
`(g=10ms^(-2))`

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Radius of circle r = 0.5 m
`" "`The required speed at the highest point `v_(2)=sqrt(gr)=sqrt(10 times 0.5)=sqrt(5)ms^(-1)`.
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