Calculating Work Done by a 2HP Engine to Pump Water

Thread starter dreamgirl
Start date Mar 31, 2009
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Engine Pump Water Work Work done

AI Thread Summary

To calculate the work done by a 2HP engine running a water pump for 24 hours, one must first understand that horsepower is a unit of power, not force. The work done can be derived from the power output and the time duration, using the formula W = P * t, where P is power in watts and t is time in seconds. If a 1.0 horsepower engine were used instead, it would take longer to pump the same amount of water, as it has less power output compared to the 2HP engine. The key to solving the problem lies in converting horsepower to watts and then applying the work formula. Understanding these concepts is crucial for accurately calculating the work done by the engine.

Mar 31, 2009

dreamgirl

Homework Statement

A 2 Horsepower engine runs a water pump for 24 hours

a. What is the work done by the engine?
b. What would happen if a 1.0 horsepower was used to pump the same amount of water?

W= F * D

But i don't know what D is? so how must i solve this?
please help! :[

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Mar 31, 2009

Pengwuino

Gold Member

Here's a hint, horsepower is not a force. It is actually a unit of power.

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