Concept explainers
To find: The speed of the object at
Answer to Problem 3E
The speed of the object at
Explanation of Solution
Given information:
An object is dropped from rest from the top of a building 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.
Substitute
Further simplify.
So, the instantaneous speed of the object at
Verify the result algebraically:
Use the formula for speed of the object algebraically.
Further, simplify.
Substitute
Therefore, the speed of the object at
Chapter 2 Solutions
Calculus: Graphical, Numerical, Algebraic
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