Question

Figure below shows a liquid being pushed out of the tube by a piston having area of cross section 2.0 cm². The area of cross section at the outlet is 10 mm² . If the piston is pushed at a speed of 4 cm s^-1 , the speed of outgoing fluidis_____cm s^-1.

Answer 1

Correct answer is 80

By equation of continuity

A₁V₁ = A₂V₂

\(V_2=\frac{2\times4}{10\times10^{-2}}=80\,Cm/s\)