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AIIMS 2017 Physics Question Paper for free online practice with solutions
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© examsnet.com
Question : 14
Total: 60
A bucket tied at the end of a 1.6 m long string is whirled in a vertical circle with constant speed.What should be the minimum speed so that the water from the bucket does not spill when the bucket is at the highest position?
4 m/sec
6.25 m/sec
16 m/sec
None of the abov
Validate
Solution:
Since water does not fall down, therefore the velocity of revolution should be just sufficient to provide centripetal acceleration at the top of vertical circle. So,
v
=
√
(
g
r
)
=
√
10
×
1.6
=
√
16
= 4 m/sec.
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