CUET Preparation Today
An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velocity of 2 m/s. The mass per unit length of water in the pipe is 100 kg/m. What is the power of the engine? |
800 W 400 W 200 W 100 W |
800 W |
P = \(dv^3\rho\) = \(mu_v^3\) \(mu = 100 ; v = 2\) P = 800 W |
