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# When its 75-kW (100-hp) engine is generating full power, a ISBN: 9780321675460 31

## Solution for problem 54E Chapter 6

University Physics | 13th Edition

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Problem 54E

When its 75-kW (100-hp) engine is generating full power, a small single-engine airplane with mass 700 kg gains altitude at a rate of 2.5 m/s (150 m/min, or 500 ft/min). What fraction of the engine power is being used to make the airplane climb? (The remainder is used to overcome the effects of air resistance and of inefficiencies in the propeller and engine.)

Step-by-Step Solution:

Solution 54E Step 1 of 3: In the given problem, we need to Calculate the power used to make the plane climb against gravity. Given data, Speed, v=2.5 m/s Mass, m=700 kg Power of engine, P=75 kW As the gravity is acting vertically downward, we need to consider the vertical motion. Step 2 of 3: The rate at which work is being done against gravity is P=Fv Since F= mg P=mgv 2 Substituting m=700 kg, v=2.5 m/s and g= 9.8m/s 2 P=(700 kg)(9.8m/s )(2.5 m/s) P=17.15 kW 17.15 kW part of the engine power that is being used to make the airplane climb.

Step 3 of 3

##### ISBN: 9780321675460

This full solution covers the following key subjects: engine, power, airplane, min, used. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The answer to “When its 75-kW (100-hp) engine is generating full power, a small single-engine airplane with mass 700 kg gains altitude at a rate of 2.5 m/s (150 m/min, or 500 ft/min). What fraction of the engine power is being used to make the airplane climb? (The remainder is used to overcome the effects of air resistance and of inefficiencies in the propeller and engine.)” is broken down into a number of easy to follow steps, and 63 words. This textbook survival guide was created for the textbook: University Physics, edition: 13. The full step-by-step solution to problem: 54E from chapter: 6 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. University Physics was written by and is associated to the ISBN: 9780321675460. Since the solution to 54E from 6 chapter was answered, more than 399 students have viewed the full step-by-step answer.

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