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28 September, 11:28

A slinky is stretched across a classroom to 9 meters. A compression travels along the slinky at a velocity of 2 m s. How long does it take the compression to travel the entire 9m length of the classroom?

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  1. 28 September, 11:55
    0
    It really doesn't matter whether it's a compression wave in a Slinky®,

    or a trained frog, or a model airplane, or a baby chicken.

    Time = distance / speed

    Time = (9 m) / (2 m/s) = 4.5 seconds
  2. 28 September, 11:57
    0
    It is simple. distance divided by time would make it letter c, 4.5 seconds
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