Can someone please give me a brief explanation to the solution to this multiple

Question

Can someone please give me a brief explanation to the solution to this multiple choice problem to do with circular motion.

A person swings a bucket of water in a vertical circle. Even when the bucket is upside down, the water stays in the bucket. Which of the following changes (assuming all other variables are unchanged) risks letting the water out of the bucket? None of the other answers risks letting the water fall out of the bucket O Increase the speed of the bucket. Decrease the mass of the water. O Move to the Moon (where g is smaller) Increase the radius of the circular motion.

Explanation / Answer

the water stays in the bucket

the centripetal force required is more than the weight of water in bucket

mv^2/r > mg

Now , for letting water out of bucket

as increasing the radius of motion decreases the centripetal force required

hence , Increase the radius of circular motion

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