A small ball of mass \( m \) is released from height \( h \) on a wedge having circular track as...

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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
P smooth)
(1) \( \frac{2 m g h}{R} \)
(2) \( \frac{4}{3} \frac{m g h}{R} \)
(3) \( \frac{m g h}{2 R} \)
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