An engine pumps water continuously through a hose. Water leaves the hose with a velocity v and m is the mass per unit length of the water of the jet. What is the rate at which kinetic energy is imparted to water ?.
A. ½ mv2
B. mv2
C. ½ mu2
D. mu2
Answer:A
An engine pumps water continuously through a hose. Water leaves the hose with a velocity v and m is the mass per unit length of the water of the jet. What is the rate at which kinetic energy is imparted to water ?.
A. ½ mv2 B. mv2 C. ½ mu2 D. mu2