A heavy block at rest is suspended by a vertical rope.When the block is accelerated upward by the rope,the rope tension
A)increases.
B)decreases.
C)remains the same.

Question

Quizplus · Accepted Answer

According to Newton's second law, when an object is accelerated, the net force acting on it is given by F=ma, where F is the net force, m is the mass of the object, and a is the acceleration. In this case, the block is accelerated upward by the rope, which means that there must be a net force acting upward on the block. This net force is provided by the tension in the rope. Therefore, as the block is accelerated upward, the tension in the rope must increase to provide the necessary net force.

A Heavy Block at Rest Is Suspended by a Vertical