Question

Velocity of pulse in slinky. they found that pulse took 7.5s to complete three times the lenght of the slinky which is 15m. find the velocity of the pulse

Answer 1

Hi friend✋✋✋✋
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your answer
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Time taken by the post to cover the length of the slinky 3 times = 7.5 s

Length of the slinky = 15 m

Then,
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Time taken to cover 15m once = 7.5/3 seconds = 2.5 seconds

So,
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Speed of the pulse = 15/2.5 m/s

= 6 m/s