Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
4th Edition
ISBN: 9780133953145
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Chapter 2, Problem 18EAP
A Porsche challenges a Honda to a 400 m race. Because the Porsche’s acceleration of 3.5 m/s2 is larger than the Hondas 3.0 m/s2, the Honda gets a 1.0 s head start. Who wins? By how many seconds?
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Chapter 2 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - FIGURE Q2.4 shows a position-versus-time graph for...Ch. 2 - FIGURE Q2.5 shows a position-versus-time graph for...Ch. 2 - FIGURE Q2.6 shows the position-versus-time graph...Ch. 2 - FIGURE Q2.7 shows the position-versus-time graph...Ch. 2 - FIGURE Q2.8 shows six frames from the motion...Ch. 2 - You’re driving along the highway at a steady speed...Ch. 2 - A bicycle is traveling east. Can its acceleration...
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- A Porsche challenges a Honda to a race. Because the Porsche’s acceleration of 3.5 m/s2 is larger than the Honda’s 3.0 m/s2, the Honda gets a 100-m head start — it begins 300 m from the finish line, while the Porsche begins 400 m from the finish line. Assume both cars maintain these accelerations throughout the entire race. Who wins, and by how much time?arrow_forwardThe Oscar Mayer Weinermobile is moving at 6 m/s when it begins to accelerate at 3.1 m/s2 . To the nearest tenth of a second, how long does it take for the Weinermobile to reach a speed of 24.5 m/s?arrow_forwardIn a half marathon (13.1 miles), one runner finishes with a speed of 6.5 miles/hour and another finishes with 10 miles/hour. How long does the faster runner have to wait at the finish line to see the slower runner cross? Explain your final answer in minutes.arrow_forward
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- Jo, with a reaction time of 0.2 second, rides her bike at a speed of 6.0 m/s. She encounters an emergency situation and “immediately” applies her brakes. How far does Jo travel before she actually applies the brakes?arrow_forwardA Porsche challenges a Honda to a 400 m race. Because the Porsche's acceleration of 3.5m/s23.5 \mathrm { m } / \mathrm { s } ^ { 2 }3.5m/s2 is larger than the Honda's 3.0m/s23.0 \mathrm { m } / \mathrm { s } ^ { 2 }3.0m/s2, the Honda gets a 100-m head start-it is only 300 m from the finish line. Assume, somewhat unrealistically, that both cars can maintain these accelerations the entire distance. Who wins, and by how much time?arrow_forwardA tortoise can run with a speed of 0.15 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 1.0 minutes. The tortoise wins by a shell (25 cm). How long does the race take? (sec) What is the length of the race?(m)arrow_forward
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