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# An airplane flies horizontally at 55.0 m/s. Its propeller ## Problem 40P Chapter 1

Fluid Mechanics | 2nd Edition

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Problem 40P

An airplane flies horizontally at 55.0 m/s. Its propeller delivers 1500 N of thrust (forward force) to overcome aero­dynamic drag (backward force). Using dimensional reasoning and unity conversion ratios, calculate the useful power deliv­ered by the propeller in units of kW and horsepower.

Step-by-Step Solution:

Solution to 40P

Step 1</p>

We need to find the power delivered by the propeller in kW and horsepower units.

We know that     v=velocity of the body

F= force

Step 2</p>

Horizontal velocity of the airplane=55m/s

Forward force=1500N

P=(1500x55)W=82500W Thus power in kW is 82.5kW

Step 3 of 3

##### ISBN: 9780071284219

Since the solution to 40P from 1 chapter was answered, more than 540 students have viewed the full step-by-step answer. Fluid Mechanics was written by Sieva Kozinsky and is associated to the ISBN: 9780071284219. This textbook survival guide was created for the textbook: Fluid Mechanics, edition: 2nd. The full step-by-step solution to problem: 40P from chapter: 1 was answered by Sieva Kozinsky, our top Engineering and Tech solution expert on 07/03/17, 04:51AM. The answer to “An airplane flies horizontally at 55.0 m/s. Its propeller delivers 1500 N of thrust (forward force) to overcome aero­dynamic drag (backward force). Using dimensional reasoning and unity conversion ratios, calculate the useful power deliv­ered by the propeller in units of kW and horsepower.” is broken down into a number of easy to follow steps, and 43 words. This full solution covers the following key subjects: Force, propeller, Forward, calculate, conversion. This expansive textbook survival guide covers 15 chapters, and 1547 solutions.

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