Explanation Given information: An airplane flew for five hours with a 25 km/h tail wind and required six hours while flying against the wind. Formula used: Use the following steps to solve the problem, Step 1: Familiarize with the problem and assume variables for the given quantities in the question. Step 2: Translate the statements in the form of equations. Step 3: Solve the equations. Step 4: Check the solution obtained. Step 5: State the answer. Also, the motion formula is, d = r ⋅ t Where d is the distance travelled, r is the speed and t is the time taken. Calculation: An airplane flew for five hours with a 25 km/h tail wind and required six hours while flying against the wind. Let s be the speed of airplane in still air, and d be the distance travelled. Using the Motion formula, the distance travelled by the airplane in the same direction of wind obtained as, d = r ⋅ t Here, r = s + 25 and t = 5 . Substituting, d = r ⋅ t = ( s + 25 ) × 5 Using the Motion formula, the distance travelled by the airplane against the direction of wind is obtained as, d = r ⋅ t Here, r = s − 25 and t = 6

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Author: BITTINGER

Publisher: Pearson Custom Publishing

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Chapter 13.5, Problem 4DE

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To calculate: The speed of an airplane in still air, which flew for five hours with a 25 km/h tail wind and required six hours while flying against the wind.

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Chapter 13.5, Problem 3DE

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Ch. 13.1 - Prob. 1SR Ch. 13.1 - Prob. 2SR Ch. 13.1 - Prob. 1DE Ch. 13.1 - Prob. 2DE Ch. 13.1 - Prob. 3DE Ch. 13.1 - Prob. 4DE Ch. 13.1 - Prob. 5DE Ch. 13.1 - Prob. 6DE Ch. 13.1 - Prob. 7DE Ch. 13.1 - Prob. 8DE

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The speed of an airplane in still air, which flew for five hours with a 25 km/h tail wind and required six hours while flying against the wind.

Solution Summary: The author calculates the speed of an airplane in still air, which flew for five hours with a 25 km/h tail wind.

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To calculate: The speed of an airplane in still air, which flew for five hours with a 25 km/h tail wind and required six hours while flying against the wind.

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