Concept explainers
(a)
To find: The average speed during the first
(a)
Answer to Problem 69E
The average speed during the first
Explanation of Solution
Given information: A water balloon dropped from a window high above the ground falls
Calculation:
Use the formula for the speed of the object.
Now, substitute
Initially the object was at rest so
Now substitute these values in formula for speed.
Therefore, the average speed during the first
(b)
To find: The speed of the object at instant
(b)
Answer to Problem 69E
The speed of the object at instant
Explanation of Solution
Given information: A water balloon dropped from a window high above the ground falls
Calculation:
The instantaneous speed of an object at
Use the formula for average speed.
Substitute
Substitute
Substitute these values in the formula for average speed.
Further simplify.
Substitute
Therefore, the instantaneous speed of the object at
Chapter 2 Solutions
Calculus 2012 Student Edition (by Finney/Demana/Waits/Kennedy)
Additional Math Textbook Solutions
Calculus and Its Applications (11th Edition)
University Calculus: Early Transcendentals (4th Edition)
Thomas' Calculus: Early Transcendentals (14th Edition)
Single Variable Calculus: Early Transcendentals (2nd Edition) - Standalone book
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