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A frictionless tracke ABCDE ends in a circular loop of radius 'r' A body slides down the track from the point 'A' which is at a height h=10 cm . The maximum value of 'r' for the body to successful complete the loop is

A

2 cm

B

1 cm

C

4 cm

D

6 cm

Text Solution

Verified by Experts

The correct Answer is:
C
`h=(5r)/(2)impliesr=(2h)/(5)=(2(10))/(5)=4 cm`.
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