A block of mass 5 Kg, exhibits circular motion with the mass decreasing at the rate of 0.5 Kg/s. At what time the centripetal force will be zero on the block?

A block of mass 5 Kg, exhibits circular motion with the mass decreasi

1.	A block of mass 5 Kg, exhibits circular motion with the mass decreasing at the rate of 0.5 Kg/s. At what time the centripetal force will be zero on the block?
A.	At 10 s
B.	At 5 s
C.	At 1 s
D.	At 7 s
Answer» B. At 5 s

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A block of mass 5 Kg, exhibits circular motion with the mass decreasing at the rate of 0.5 Kg/s. At what time the centripetal force will be zero on the block?

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