A square of elastic sheet of dimension (...

A square of elastic sheet of dimension (`axxa`) has a mas `125gm`. A force of `2.5N` is applied to each of the four edges. What is the velocity of waves on the sheet? `a=0.75m`

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The correct Answer is:

`v=sqrt(T/(sigma))=sqrt((2.5/0.75)/(0.125/0.75))=3.9m//s~~4m//s`

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