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 = 10 m/sec²)

• A. $4m/\sec$
• B. $6.25m/sec$
• C. $16m/sec$
• D. None

Answer 1

Answer: (A)

$4m/\sec$

Answer 2

$v = \sqrt{g\mspace{6mu} r} = \sqrt{10 \times 1.6} = \sqrt{16} = 4m/s$