A block of mass m slides down the plane inclined at an angle 60^@with an acceleration g/2. Find the co-efficient of kinetic friction.

A block of mass m slides down the plane inclined at an angle 60^@with

1.	A block of mass m slides down the plane inclined at an angle 60^@with an acceleration g/2. Find the co-efficient of kinetic friction.
Answer» 0.01 0.05 0.03 0.06 Solution :`a= v/t = 5/(10) = 0.5 MS^(-2)` `F = ma = 2xx 0.5 = 1.5 N` Co-efficient of friction `mu` = ? `therefore muN = F` `mu = F/N = F/(MG) = 1.5/(3xx10) = 0.05`