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Calculating Average Acceleration for a Sports Car
Chapter 1, Problem Problems 17(choose chapter or problem)
A high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 7.9 s.
(a) What is the car's average acceleration?
(b) The same car can come to a complete stop from 30 m/s in 3.2 s. What is its average acceleration?
Questions & Answers
QUESTION:
A high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 7.9 s.
(a) What is the car's average acceleration?
(b) The same car can come to a complete stop from 30 m/s in 3.2 s. What is its average acceleration?
ANSWER:Step 1 of 2
(a) Given data:
\(\begin{array}{l}\text{Initial velocity of the car }u=0\\ \text{Final velocity of the car v }=44.7\mathrm{\ m}/\mathrm{s}\\ \text{Time taken to reach final velocity }t=7.9\mathrm{\ s}\end{array}\)
The average acceleration is given as,
\(a=(v-u) / t\)
Substituting all known values,
\(\begin{array}{l} a=(44.7-0) / 7.9 \\ a=5.658 \mathrm{~m} / \mathrm{s}^{2} \end{array}\)
Therefore, the average acceleration of the car is \(5.658 \mathrm{~m} / \mathrm{s}^{2}\).
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Calculating Average Acceleration for a Sports Car
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Explore the world of high-performance sports cars and learn how to calculate their average acceleration when accelerating and coming to a stop.