Concept explainers
(a)
To Find: the acceleration of the elevator.
(a)
Answer to Problem 83A
The acceleration of the elevator is
Explanation of Solution
When it is at rest then
Formula used:
When the elevator is moving up its resultant weight on it is given as
Calculation:
Conclusion:
The acceleration of the elevator is
(b)
To Find: the acceleration of the elevator.
(b)
Answer to Problem 83A
The acceleration of the elevator is
Explanation of Solution
When it approaches 74 floor then,
Calculation:
Conclusion:
The acceleration of the elevator is
(c)
To Explain: change in velocity using results of part (a) and part (b).
(c)
Answer to Problem 83A
The change in velocity, starting takes the longer time than stopping time.
Explanation of Solution
During starting it takes longer time than stopping of it.
On the way ride back down,
Hence, its weight decreases
When the elevator is moving up its resultant weight on it is given as
Conclusion:
The change in velocity, starting takes the longer time than stopping time.
Chapter 4 Solutions
Glencoe Physics: Principles and Problems, Student Edition
Additional Science Textbook Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
College Physics
Sears And Zemansky's University Physics With Modern Physics
College Physics: A Strategic Approach (4th Edition)
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