A steel cable is stretched across a gorge. The cable is190 m long and has a mass

Question

A steel cable is stretched across a gorge. The cable is190 m long and has a mass of 44 kg. When one end of thecable is struck with a hammer, a wave pulse travels down the cable,reflects at the far end, and is detected back at the first end14 s later. What is the speed of the wave?


A steel cable is stretched across a gorge. The cable is190 m long and has a mass of 44 kg. When one end of thecable is struck with a hammer, a wave pulse travels down the cable,reflects at the far end, and is detected back at the first end14 s later. What is the speed of the wave?

Explanation / Answer

the distance travelled by the wavein 14sec is = 2L L = length of the rope              velocity of the wave V = 2 * 190m / 14.                                            = 27.14m /sec .

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