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13 October, 00:34

A crane lifts a 1,750 kg mass using a steel cable whose mass per unit length is 0.88 kg/m. What is the speed of transverse waves on this cable?

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  1. 13 October, 00:48
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    139.6m/s

    Explanation:

    Calculate the tension first, T=m*g

    mass (m) : 1750kg, gravity (g) : 9.8m/s^2

    T = 1750*9.8

    =17150N

    Then calculate the wave speed using the equation v = √ (T/μ)

    v = √ (17150N) / (0.88kg/m)

    =139.6m/s
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