Answer to Question #192048 in Mechanics | Relativity for Nicole

Question

Two boxes, mass M and 3M are stacked on top of each other. The stack of boxes is placed inside an elevator which is accelerating upwards.

How does the magnitude of the force exerted by the top box on the bottom box compare to the magnitude of the force exerted by the bottom box on the top box?

(A) The top box exerts a force which is 3 times larger

(B) The bottom box exerts a force which is 3 times larger

(C) The two forces are equal

(D) The top box exerts a larger force, but it is not necessarily 3 times larger

Answer 1

Answer.

(C) The two forces are equal

Explanation :-as we see from elevator frame , both boxes are at rest and exerts equal force on each other.