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(( What is the average velocity of a man who runs forward at 8 m/s for 9 s and back again at 5 m/s for 3 s after an 8 s break?

(( What is the average velocity of a man who runs forward at 8 m/s for 9 s and back again at 5 m/s for 3 s after an 8 s break?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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napter 3 review Quantitative problems Section 3.2 77. What is the average velocity of a man who runs forward at 8 m/s for 9 s and back again at 5 m/s for 3 s after an 8 s break? 78. Two cyclists that are 500 m apart start biking toward each other. They bike at speeds of 6 and 4 m/s. a. How long does it take for them to reach each other? b. How far does the slower biker travel? 40 Velocity vs. time 20 86. -20 -40 2 3 4 Time (s) 79. The velocity versus time graph above represents the motion of a ball that is thrown upward. Use the graph to calculate the maximum height the ball reaches. 80. CA runner passes the 2,000 m mark of a race 380s after starting. At what time (after starting) will the runner reach the 5,000 m mark if her speed remains constant? 87. ( OCT Velocity (m/s)
Transcribed Image Text:napter 3 review Quantitative problems Section 3.2 77. What is the average velocity of a man who runs forward at 8 m/s for 9 s and back again at 5 m/s for 3 s after an 8 s break? 78. Two cyclists that are 500 m apart start biking toward each other. They bike at speeds of 6 and 4 m/s. a. How long does it take for them to reach each other? b. How far does the slower biker travel? 40 Velocity vs. time 20 86. -20 -40 2 3 4 Time (s) 79. The velocity versus time graph above represents the motion of a ball that is thrown upward. Use the graph to calculate the maximum height the ball reaches. 80. CA runner passes the 2,000 m mark of a race 380s after starting. At what time (after starting) will the runner reach the 5,000 m mark if her speed remains constant? 87. ( OCT Velocity (m/s)
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