Concept explainers
To find the constant of proportionality in terms of
Answer to Problem 20P
The car needs to increase its speed by
Explanation of Solution
Given information:
The given statement is:
“The kinetic energy of a moving object varies directly as the square of its speed. By how much would a car travelling at
Calculation :
Let the kinetic energy be
The constant of proportionality can be written as:
Hence, the car needs to increase its speed by
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Algebra and Trigonometry: Structure and Method, Book 2
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