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A football quarterback runs 13.7 m straight down the playing field in 2.50 s. He is then hit and pushed 3.00 m straight backward in 2.10 s. He breaks the tackle and runs straight forward another 18.3 m in 5.20 s. Calculate his average velocity for each of the three intervals and for the entire motion. (Define the positive direction to be the direction of initial motion.) What is his average velocity over the entire motion? 2

A football quarterback runs 13.7 m straight down the playing field in 2.50 s. He is then hit and pushed 3.00 m straight backward in 2.10 s. He breaks the tackle and runs straight forward another 18.3 m in 5.20 s. Calculate his average velocity for each of the three intervals and for the entire motion. (Define the positive direction to be the direction of initial motion.) What is his average velocity over the entire motion? 2

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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A football quarterback runs 13.7 m straight down the playing field in 2.50 s. He is then hit and pushed 3.00 m straight backward in 2.10 s. He breaks the tackle and runs straight forward another 18.3 m in 5.20 s. Calculate his average velocity for each of the three intervals and for the entire motion. (Define the positive direction to be the direction of initial motion.) What is his average velocity over the entire motion? AFCpERr I
Transcribed Image Text:A football quarterback runs 13.7 m straight down the playing field in 2.50 s. He is then hit and pushed 3.00 m straight backward in 2.10 s. He breaks the tackle and runs straight forward another 18.3 m in 5.20 s. Calculate his average velocity for each of the three intervals and for the entire motion. (Define the positive direction to be the direction of initial motion.) What is his average velocity over the entire motion? AFCpERr I
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Hello, I have a question about this exercise: 

I thought that because 18. 3 is going forward, should be add it and not subtract it. 

So it might be 13.7-3+18.3? 

if not please correct me, because I'm unsure about this part.

 

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