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A gas flows with a velocity of v along a...

A gas flows with a velocity of v along a pipe of cross sectional area s and bent at angle of `90^@` at a point A. what force does the gas exert on the pipe at A if it's density is `rho` ?

A

a)`(sqrt2 Sv)//rho`

B

b)`(sqrt2Sv^2rho)`

C

c)`sqrt3Sv^2rho`

D

d)`sqrt3Svrho`

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The correct Answer is:
B
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