A block B is pushed momentarily along a horizontal surface with an initial velocity v . If is the coefficient of sliding friction between B and the surface, block B will come to rest after a time

Step-by-step solution

Block will come to rest, if force applied on it. It will vanish due to frictional force acting between block B and surface, i.e., Force applied = Frictional force i.e., m g=m a or m g=m ( v t ) or t= v g