a cord of mass 0.75 kg is stretched between two supports 28 m apart. part a if the tension in the cord is 140 n , how long will it take a pulse to travel from one support to the other? express your answer using two significant figures.

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15-11-2022
Physics

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a cord of mass 0.75 kg is stretched between two supports 28 m apart. part a if the tension in the cord is 140 n , how long will it take a pulse to travel from one support to the other? express your answer using two significant figures.

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smecloudbird18 smecloudbird18 · Answer 1 · 2022-11-18T13:33:51+01:00

A cord of mass 0.75 kg is stretched between two supports 28 m apart. part a if the tension in the cord is 140 n , It will take 0.39 seconds for a pulse to travel from one support to the other

Time taken to travel from one support to other = change in position / speed

Time taken = Δx / [tex]\sqrt{Force * L / mass}[/tex]

= 28 / [tex]\sqrt{140 * 28 / 0.75}[/tex]

= 0.39 seconds

A pulse will take 0.39 seconds to travel from one support to the other

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