In the figure shown, a liquid is flowing through a tube at the rate of 0.1 m3/sec. The tube is randed into two semicircular tubes of cross sectional area A3 and 2A3. The velocity of liquid at Q is VQ and Velocity at P is VP (The cross-sectional area of the main is A)
If VP=20 m/s, then VQ=5 m/s
Equation of continuity
Rate (r)=A3Vp+(A−A3) VQ
VP+2VQ=3rA=3×0.110−2=30m/s