Question

You pull a brick of mass $M$ sitting on a flat table using a thick rope of mass $m$. Friction between the surface of the table and the brick is enough so that the brick remains at rest. Compared to the force with which you pull on one end of the rope, the force that the other end of the rope exerts on the brick is _________.

• A. less
• B. greater
• C. the same
• D. zero

Answer 1

The correct option is B greater



$F_H$ counters the horizontal force and$F_V$ counters the weight. Now, net force on left $=\sqrt{F_H^2+F_V^2}$
and, net force on right $=F$
Clearly, $\sqrt{F_H^2+F_V^2}>F$.