A block of mass m is pulled by a constant power P placed on a rough horizontal plane. The coeficient of friction between the block and surface is mu. Find the maximum velocity of the block.

A block of mass m is pulled by a constant power P placed on a rough ho

1.	A block of mass m is pulled by a constant power P placed on a rough horizontal plane. The coeficient of friction between the block and surface is mu. Find the maximum velocity of the block.
Answer» Solution :Power`""` P=F.V=constant `F=(P)/(v) " or "Fprop(1)/(v)` as v increases, F decreases. when `F=mumg`, net force on block BECOMES zero, i.e., it has MAXIMUM or terminal velocity `:. P=(mumg)v_(max) " or "v_(max) " or " v_(max)=(P)/(mumg)`