A block of mass m is placed at the top of a smooth wedge ABC. The wedge is rotated about an axis passing through C as shown in the figure. The minimum value of angular speed 
such that the block does not slip on the wedge is-
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
m ω 2 r cos θ = mg sin θ
m ω 2 λ cos 2 θ = mg sin θ
w= 
= 
sec θ
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