When gasoline is burned in the cylinder of an engine, it creates a high pressure on the piston. if the pressure is 100 pounds-force per square inch [psi], and it moves the 3 inch diameter piston a distance of 5 centimeters in 0.1 seconds [s], how much horse power [hp] does this action produce?

Answer : power = 2.09 hp

Explanation :

It is given that,

Pressure, P =  100 pounds-force per square inch

Radius,

Distance, d = 5 cm = 1.96 inch

We know that,

And

So,

We know that,

power = 2.09 hp

So, this action will produce power = 2.09 hp.

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