"You tie a cord to a pail of water, and you swing the pail in a vertical circle of radius 0.650m."
"What minimum speed in meters per second must you give the pail at the highest point of the circle if no water is to spill from it?"
How would you go about finding that speed?
"What minimum speed in meters per second must you give the pail at the highest point of the circle if no water is to spill from it?"
How would you go about finding that speed?
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It's the value such that the centripetal acceleration v^2/r is equal to gravitational acceleration g.