Kinematics Question 535

Question: 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 (Take $ g=10m/{{\sec }^{2}} $ ) [AIIMS 1987]

Options:

A) 4 m/sec

B)6.25 m/sec

C) 16 m/sec

D)None of the above

Show Answer

Answer:

Correct Answer: A

Solution:

Critical velocity at highest point$ =\sqrt{gR}=\sqrt{10\times 1.6} $ =4m/s



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