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Question

A uniform plank leans against a cylindrical body as shown in figure. The right end of plank slides at a constant speed of v = 2m/s. If R = 1m, then angular velocity of the plank when θ=37 is (Write upto two digits after the decimal point.)

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Solution


Instantaneous axis of rotation is as shown in the figure.
ω=vRsinθtanθ=2×35341=0.9

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