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? (AIPMT 2009)
A. \(\frac { 1 }{ 2 }\) mv3
B. mv3
C. \(\frac { 3 }{ 2 }\)mv²
D. \(\frac { 5 }{ 2 }\) mv²
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? (AIPMT 2009)
A. \(\frac { 1 }{ 2 }\) mv3 B. mv3 C. \(\frac { 3 }{ 2 }\)mv² D. \(\frac { 5 }{ 2 }\) mv²