In a horizontal pipe of non-uniform cross section, water flows with a velocity of 1ms^(-1) at a point where the diameter of the pipe is 20 cm. The velocity of water (ms^(-1)) at a point where the diameter of the pipe 10 cm is:

In a horizontal pipe of non-uniform cross section, water flows with a

1.	In a horizontal pipe of non-uniform cross section, water flows with a velocity of 1ms^(-1) at a point where the diameter of the pipe is 20 cm. The velocity of water (ms^(-1)) at a point where the diameter of the pipe 10 cm is:
Answer» 0.0025 m/s 0.25 m/s 0.025 m 0.5 m/s Solution :`v_(1)=1m` `d_(1)=20xx10^(-2)m` `v_(2)=?` `d_(2)=10xx10^(-2)m` `(5)/(4)d_(1)^(2)v_(1)=(5)/(4)d_(2)^(2)v_(2)` `d_(1)^(2)v_(1)=d_(2)^(2)v_(2)` `(v_1)/(v_2)=(d_(2)^(2))/(d_(1)^(2))` `(1)/(v_2)=((20xx10^(-2))^(2))/((10xx10^(-2))^(2))` `(1)/(v_2)=4` `v_(2)=(1)/(4)m//s` `=.25m//s`