University Physics with Modern Physics, Volume 1 (Chs. 1-20) and Mastering Physics with Pearson eText & ValuePack Access Card (14th Edition)
14th Edition
ISBN: 9780134209586
Author: Hugh D. Young
Publisher: PEARSON
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Chapter 2, Problem 2.13E
The Fastest (and Most Expensive) Car! The table shows test data for the Bugatti Veyron Super Sport, the fastest street car made. The car is moving in a straight line (the x-axis).
(a) Sketch a υx−t graph of this car’s velocity (in mi/h) as a function of time. Is its acceleration constant? (b) Calculate the car’s average acceleration (in m/s2) between (i) 0 and 2.1 s: (ii) 2.1 s and 20.0 s; (iii) 20.0 s and 53 s. Are these results consistent with your graph in part (a)? (Before you decide to buy this car, it might be helpful to know that only 300 will be built, it runs out of gas in 12 minutes at top speed, and it costs more than $1.5 million!)
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Cheetahs can accelerate to a speed of 20.0 m/s in 2.50 s and can continue to accelerate to reach a top speed of 29.8 m/s. Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +?-direction point in the direction the cheetah runs.
Express the cheetah's top speed ?top in miles per hour (mi/h).
(I already have the answer to this one) vtop=66.7 mi/h
Starting from a crouched position, how much time taccel does it take a cheetah to reach its top speed, and what distance ?d does it travel in that time?
(I already have the answer to this one) taccel= 3.725 s & d=55.50 m
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Chapter 2 Solutions
University Physics with Modern Physics, Volume 1 (Chs. 1-20) and Mastering Physics with Pearson eText & ValuePack Access Card (14th Edition)
Ch. 2.1 - Each of the following five trips takes one hour....Ch. 2.2 - TEST YOUR UNDERSTANDING OF SECTION 2.2 Figure 2.9...Ch. 2.3 - Look again at the x-t graph in Fig. 2.9 at the end...Ch. 2.4 - Four possible vx-t graphs are shown for the two...Ch. 2.5 - If you toss a ball upward with a certain initial...Ch. 2 - Does the speedometer of a car measure speed or...Ch. 2 - The black dots at the top of Fig. Q2.2 represent a...Ch. 2 - Can an object with constant acceleration reverse...Ch. 2 - Under what conditions is average velocity equal to...Ch. 2 - Is it possible for an object to be (a) slowing...
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