An engine pumps water through a hose pipe water passes through the pipe and leaves it with velocity of 2 metre per second. the mass per unit length of water in the pipe is 100kg per metre. what is the power of the engine?

An engine pumps water through a hose pipe water passes through the pip

1.	An engine pumps water through a hose pipe water passes through the pipe and leaves it with velocity of 2 metre per second. the mass per unit length of water in the pipe is 100kg per metre. what is the power of the engine?
Answer» P = 400 w.EXPLANATION:The water from the hose pipe comes out at the SPEED, v = 2 m/sMass per unit length of the pipe = 100 KG/mSo, amount of water that comes out per second = 100 × 2 = 200 kg (SINCE, the water covers 2 m per second and there is 100 kg water per meter).Therefore, Kinetic energy of the water coming out per second is KE = ½ × 200 × 2² = 400 JThis is also the work DONE by the pump per second. So, the power of the pump is, P = 400/1 = 400 W______________________________________________[ANSWER]

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An engine pumps water through a hose pipe water passes through the pipe and leaves it with velocity of 2 metre per second. the mass per unit length of water in the pipe is 100kg per metre. what is the power of the engine?​

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An engine pumps water through a hose pipe water passes through the pipe and leaves it with velocity of 2 metre per second. the mass per unit length of water in the pipe is 100kg per metre. what is the power of the engine?