What is the tension in an elevator cable which must support a 4000 N elevator with maximum upward acceleration of 2.0 g's. What would be the tension if the elevator were allowed to accelerate downward at 0.25 g's?
2 Answers
The tension for the elevator moving upward
The tension for the elevator moving downward
Explanation:
Elevator moving upward
Let the tension in the cable be
The weight of the elevator is
The acceleration is
Applying Newton's Second Law
Elevator moving downward
Let the tension in the cable be
The weight of the elevator is
The acceleration is
Applying Newton's Second Law
Explanation:
Let's see the first case, moving upwards with acceleration of
From the
In the second case the elevator goes down with an acceleration of