Homework Help: physics

Posted by Drew on Tuesday, May 18, 2010 at 5:51pm.

A steel cable is stretched across a gorge. The cable is 190 m long and has a mass of 44 kg. When one end of the cable is struck with a hammer, a wave pulse travels down the cable, reflects at the far end, and is detected back at the first end 14 s later. What is the speed of the wave?

I couldn't calculate force in this which i believe is necessary

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