A rectangular block of metal slides down a plane inclined at 45° to the horizontal in a time that is root3 times the time it takes to slide down the same
plane when it is frictionless. The coefficient of friction between the block and the inclined plane is
(A) 0.75
(B) 0.5
(C) 0.25
(D) 0.67
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Answer:
(C) is the correct answer
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