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One end of 12.0 m long rubber tube with a total mass of 0.9 kg is fastened to a fixed support.

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One end of 12.0 m long rubber tube with a total mass of 0.9 kg is fastened to a fixed support. A cord attached to the other and passes over a pulley and supports an object with a mass of 5 kg. The tube is struck a transverse blow at one end. Find the time required for the pulse to reach the other end. (g = 9.8 m/s2)

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Tension in the rubber tube AB, T = mg

Mass per unit length of rubber tube,

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