Concept explainers
(a)
The gravitational force on the passenger at cruising altitude.
Answer to Problem 28QAP
Gravitational force on the passenger at cruising altitude is 683.97 N
Explanation of Solution
Given:
Mass of earth,
The average mass of the person,
Cruising height of flight, h = 10000 m
Radius of earth,
Formula used:
The gravitational force on the passenger
Where,
h = height of flight from sea level.
Calculation:
The gravitational force on the passenger at cruising height ( h = 104m)
Conclusion:
Gravitational force on the passenger at cruising altitude is 683.97 N
(b)
How much "lighter" would a person be in flight as compared to at sea level?
Answer to Problem 28QAP
Person become 2.14 N lighter in flight as compared to at sea level.
Explanation of Solution
Given:
Mass of earth,
The average mass of the person,
Cruising height of flight, h = 10000 m
Radius of earth,
Formula used:
The gravitational force on the passenger
Where,
h = height of flight from sea level.
Calculation:
Weight of the person above the earth surface is equal to the magnitude of gravitational force acting on that person.
The weight of person at sea level (h = 0)
The weight of person at cruising height ( h = 104m)
Change in weight,
Conclusion:
Person become 2.14 N lighter in flight as compared to at sea level.
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Chapter 10 Solutions
COLLEGE PHYSICS
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