1.

A wooden block is placed on an inclinedplane. The block just begins to slide downwhen the angle of the inclination is increasedto 450. The coefficient of the friction is.

Answer»

For that Frictional force = mgsin∅

=> μmgcos∅ = mgsin∅=> μ = tan∅ = tan45 = 1

so, μ = 1



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