The time taken by a block to slide down a 45 rough incline plane is x times greater than that - Physics - Force and Laws of Motion

Question

The time taken by a block to slide down a 45 rough incline plane is
x times greater than that it would take if the incline were
perfectly smooth The coefficient of kinetic friction between the
block and the incline is

Apurba Paul · Accepted Answer

Answer:
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The time taken by a block to slide down a 45 rough incline plane is x times greater than that it would take if the incline were perfectly smooth. The coefficient of kinetic friction between the block and the incline is