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Question

A bucket containing water is tied to one end of a rope of length 1.8m. It is rotated about the other end so that water does not spill out. What is the minimum velocity of the bucket at which this can happen? (in m/s)

A
4.2
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B
2.3
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C
6.3
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D
4.9
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Solution

The correct option is A 4.2
the minimum velocity of the bucket so that water does not spill out is given by
v=(rg)=(1.810)=(18)=4.2m/s
where r is length of rope and g is acceleration due to gravity

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