A block of mass m is kept in equilibrium by a massless rope held by a monkey over a pulley as shown. Now the monkey begins to climb the rope. Statement 1: The linear momentum of the monkey, rope and block system is conserved. Statement 2: Contact forces between the monkey and rope and the tension in rope are internal forces of the system.

Question

A block of mass m is kept in equilibrium by a massless rope held by a monkey over a pulley as shown. Now the monkey begins to climb the rope. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/ac8ae929c1009f4e08a598efa7972223-.png" /> Statement 1: The linear momentum of the monkey, rope and block system is conserved. Statement 2: Contact forces between the monkey and rope and the tension in rope are internal forces of the system. (A) Statement-1 is true, Statement-2 is false (B) Statement-1 is false, Statement-2 is true (C) Statement-1 is true, Statement-2 is true and Statement-2 is a correct explanation for Statement-1 (D) Statement-1 is true, Statement-2 is true but Statement-2 is not a correct explanation for Statement-1

Tardigrade Admin · Accepted Answer

Statement-1 is false, Statement-2 is true. When the monkey climbs up the rope, the extra tension force acting on the pulley will provide for the change in momentum.