A force of 10 N is requrid to draw recta...

A force of 10 N is requrid to draw rectangular glass plate on the surface of a liquid with some velocity. Force needed to draw another glass plate of 3 times length and 2 times width is

`(5)/(3)N`

`10N`

`60N`

`30N`

Text Solution

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The correct Answer is:

`F=etaA(dv)/(dx),FalphaA`

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