question_answer

A rope is hanging from a tree, as shown in Fig. Bananas are fastened to the higher end of the rope, and a monkey is hanging along the rope near its lower end. The monkey climbs along the rope, will it be able to eat the bananas?

Answer:

                No. As the monkey climbs up, the bananas also move up through equal distance so that the momentum is conserved. Here the branch of the tree acts as a pulley which reverses the direction of momentum. When the monkey and the bananas both move up with the same velocity, the combined momentum remains zero.