# tension in elevator cable

An elevator weighing 20000 N is supported by a steel
cable. What is the tension in the cable when the elevator
is being accelerated upward at a rate of 3.00 m/s
2

 ebaines Posts: 10,033, Reputation: 5529 Expert #2 Nov 2, 2011, 05:51 AM
The cable must support the weight of the elevator car plus additional force required to accelerate the car upward. So:

F = W + ma

You will need to calculate the elevator's mass, given the fact that it weighs 20000 N. Post back with your final answer and we'll check it for you.

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