An object of mass m is hanging by a string from the roof of an elevator. The elevator is moving downward and slowing down. What is the tension in the string?
A) greater than mg
B) less than mg
C) equal to mg
D) depends on the speed of the elevator

Question

Quizplus · Accepted Answer

When the elevator is moving downward and slowing down, it is experiencing an upward acceleration. This means the tension in the string must be greater than the gravitational force (mg) to provide the net upward force required for the upward acceleration.

An Object of Mass M Is Hanging by a String