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Concept explainers
The lift force exerted by the air on the propellers.
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Answer to Problem 63A
Explanation of Solution
Given:
The mass of the helicopter is
Formula used:
From Newton’s second law of motion:
Where, a is the acceleration, m is the mass and
Calculation:
The lift force exerted by the air on the propellers will be equal to the force exerted by the helicopter when it accelerates at a rate of
Then, using the Newton’s second law,
Conclusion:
Thus, the lift force exerted by the air on the propellers is 9000N.
Chapter 4 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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