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JEE Main Physics question

PhysicsLaws of MotionJEE Main

If a block slides down a plane inclined at 30° with the horizontal with constant velocity, the coefficient of friction between the block and the inclined plane is

Answer: (D)

Solution

For motion at constant velocity, the net force along the incline is zero: mg sinθ = μmg cosθ ⟹ μ = tanθ = tan30° = 1/√3.

Question ID VK-152961