True of False?: The tension in the cable must be greater than the weight of the elevator. An elevator suspended by a vertical cable is moving downward but slowing down.

1 Answer | Add Yours

lfryerda's profile pic

lfryerda | High School Teacher | (Level 2) Educator

Posted on

Since the elevator is moving down, there are two forces acting on the elevator: the tension in the cable pulling up, and gravity pulling down.  Because the elevator is slowing down, then it has a net acceleration upwards, which means the upwards force must be greater than the weight due to gravity pulling downwards.

The tension is the cable is greater than the weight of the elevator.  The answer is true.

We’ve answered 318,960 questions. We can answer yours, too.

Ask a question