A body of mass 0.4 kg is whirled in a vertical circle making 2 rev/sec – McqOptions

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1.	A body of mass 0.4 kg is whirled in a vertical circle making 2 rev/sec. If the radius of the circle is 2 m, then tension in the string when the body is at the top of the circle, is [CBSE PMT 1999]
A.	41.56 N
B.	89.86 N
C.	109.86 N
D.	115.86 N
Answer» E.

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