Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
Describing Motion: Kinematics in One Dimension
Change chapter

2-1 to 2-3: Speed and Velocity
2-4: Acceleration
2-5 and 2-6: Motion at Constant Acceleration
2-7: Freely Falling Objects
2-8: Graphical Analysis

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 17

A sports car accelerates from rest to 95 km/h in 4.3 s. What is its average acceleration in m/s2\textrm{m/s}^2?

6.1 m/s26.1\textrm{ m/s}^2
Giancoli 7th Edition, Chapter 2, Problem 17 solution video poster

In order to watch this solution you need to have a subscription.


This is Giancoli Answers with Mr. Dychko. The acceleration of the sports car will be its change in velocity divided by time. So change of velocity is the final velocity minus the initial velocity and well the initial velocity is zero so the change in velocity is just gonna be the final velocity. And so that's gonna be 95 kilometers an hour which we convert into meters per second by multiplying by 1 hour for every 3600 seconds and times by 1000 meters for every kilometer giving us meters per second and that's 26.3889 meters per second. So we take that, divide it by 4.3 seconds and that gives us 6.1 meters per second every second or 6.1 meters per second squared acceleration.

Find us on:

Facebook iconTrustpilot icon
Giancoli Answers, including solutions and videos, is copyright © 2009-2024 Shaun Dychko, Vancouver, BC, Canada. Giancoli Answers is not affiliated with the textbook publisher. Book covers, titles, and author names appear for reference purposes only and are the property of their respective owners. Giancoli Answers is your best source for the 7th and 6th edition Giancoli physics solutions.