Question

If the flow rate of a liquid is measured at 8.0 x 10' m's going through a 20.0 m radius pipe, which of the following is the reage

fluid velocity in the pipe?
a 4.0 x 102 m/s
C 2.0 ms
b. 0.64 m's
d 6.4 ms

Answer 1

Explanation: Flow rate is how much volume is going through in an one second there for

Flow rate = Velocity × Cross sectional Area

Here cros sectional Area is = π r²

= π × 20²

= 1256 m²

Q = V ×A

8×10³ = V × 1256

V = 6.4 m/s