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    ad3need's Avatar
    ad3need Posts: 1, Reputation: 1
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    #1

    Nov 1, 2011, 11:48 PM
    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's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #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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