A block lies on a rough horizontal table (coefficient of static friction )

PHYSICS · Subjective · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

4\,\text{kg}

block

A

lies on a rough horizontal table (coefficient of static friction

\mu_s = 0.40

). It is connected by a light, inextensible string passing over a smooth pulley to a

2\,\text{kg}

block

B

that hangs freely. If the system is just about to move, state the direction in which the frictional force acts on block

A