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A force of 10 N is required to draw rect...

A force of 10 N is required 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 with same velocity is

A

`5//3N`

B

10 N

C

60 N

D

30 N

Text Solution

Verified by Experts

The correct Answer is:
C
`F=etaA(dv)/(dx)" , "F alphaA`
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