Water is following in a river. If the velocity of a layer at a distance 10 cm from the bottom is 20n cm/s. Find the velocity of layer at a height of 40 cm from the bottom.A. 10 m/sB. 20 m/sC. 30 m/sD. 80 m/s

Water is following in a river. If the velocity of a layer at a distanc

1.	Water is following in a river. If the velocity of a layer at a distance 10 cm from the bottom is 20n cm/s. Find the velocity of layer at a height of 40 cm from the bottom.A. 10 m/sB. 20 m/sC. 30 m/sD. 80 m/s
Answer» `:. F=-etaA(dv)/(dx)` `:. " " xpropv` `(v_(2))/(v_(1))=(x_(2))/(x_(1))or (v_(2))/(20) =(40)/(10)` `v_(2)=80 cm//s`

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Water is following in a river. If the velocity of a layer at a distance 10 cm from the bottom is 20n cm/s. Find the velocity of layer at a height of 40 cm from the bottom.A. 10 m/sB. 20 m/sC. 30 m/sD. 80 m/s

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