A man of weight W_man is standing on the second floor and is pulling on a rope to lift a box of weight W_box from the floor below.The rope,which is of negligible weight,has tension T in it,but the pull of the rope is insufficient to lift the box off the floor.What is the magnitude of the normal force that the second floor exerts on the man in this situation? A)W_man B)W_man + T C)W_man + T + a nonzero portion of W_box D)W_man + T + W_box

Question

Quizplus · Accepted Answer

Since the box is not being lifted, its weight is being opposed by the normal force from the floor below. Therefore, the man experiences a normal force equal in magnitude to his weight. Additionally, the tension in the rope is acting in the upward direction, so it contributes to the force on the man. Therefore, the magnitude of the normal force that the second floor exerts on the man is equal to W_man + T.

A Man of Weight W​man Is Standing on the Second

A Man of Weight W_man Is Standing on the Second