A small ball of mass m is released from height h on a wedge having circular track as shown in figure. Find the normal force on ball due to wedge just after it enters in circular track. (Assume it enters at Point P tangentially and all surfaces are smooth)
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a
2mghR
b
43mghR
c
mgh2R
d
zero
answer is A.
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Detailed Solution
Velocity of ball when it enters the circular track =2gh∴ N=mv2R=2mghR