A piece of uniform string hangs vertically so that it's free end touches the horizontal surface of a table,If now the upper end if the spring is released,show that at any instant during the falling of the string,the total force on the surface is three times the weight of that part if the string lying on the surface.

A piece of uniform string hangs vertically so that it's free end touch

1.	A piece of uniform string hangs vertically so that it's free end touches the horizontal surface of a table,If now the upper end if the spring is released,show that at any instant during the falling of the string,the total force on the surface is three times the weight of that part if the string lying on the surface.
Answer» A piece of uniform string hangs vertically so that it's free end touches the horizontal surface of a table,If now the upper end if the spring is released,show that at any instant during the falling of the string,the total force on the surface is three times the weight of that part if the string lying on the surface.

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