A block of mass `20kg` is pushed with a horizontal force of `90N`. It the coefficient of
Channel: Doubtnut
Date: 2020-08-16

A block of mass `20kg` is pushed with a horizontal force of `90N`. It the coefficient of static and kinetic friction are 0.4 and 0.3, the frictional force acting on the block is `(g =10ms^(-2))` .