A wedge of mass 2 m and a cube of mass m are shown in figure. Between cube and wedge, there is no friction. The minimum coefficient of friction between wedge and ground so that wedge does not move is –
Text Solution
Verified by ExpertsThe correct answer is:
B
Net horizontal force on wedge
F H = mg cos θ sin θ
Net normal reaction from the ground = 2 mg + mg cos 2 θ
∴ µN = F H
⇒ µ = 0.20
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