Question

A small gasoline shop engine develops 60 hp at 2000 rpm. At 2300 rpm its power output is increased by 15%. What actual horsepower does it produce at 2300 rpm? The engine produces___hp at 2300 rpm

Answer 1

Answer:

$69\text{ hp}$

Explanation:

Here, we want to get the amount of horsepower produced by the engine at 2300 rpm

From the question, we have :

60 hp produced at 2000 rpm

At 2,300 rpm, there would be 15% increase in hp

Thus, at 2300 rpm, the hp would be:

$\begin{gathered} 60\text{ + 15\% of 60} \\ 60\text{ + }\frac{15}{100}\times60 \\ \text{ = 60 + 9 = 69 hp} \end{gathered}$

Thus, this means that the engine produces 69 hp at 2300 rpm