A bucket tied at the end of a 1.6 m long string is whirled in a vertical circle with a 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?

A bucket tied at the end of a 1.6 m long string is whirled in a vertic

1.	A bucket tied at the end of a 1.6 m long string is whirled in a vertical circle with a 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?
A.	4 m/sec.
B.	16 m/sec.
C.	6.25 m/sec.
D.	None of these
Answer» B. 16 m/sec.