Published by:
CGP EDU Academic Team
Published on: August 21, 2026
is an inclined plane at the foot of which there is a semi-circular hoop BCD of radius 
. A body starts from rest at 
and slides without friction. What should be the minimum height of 
above the level of 
so that the body may move along 
without falling off?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Apply energy conservation between point 
and 
For complete half circle without falling off minimum velocity at point 
is 
Squaring both the sides
So, 
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