An athlete is training on a 100 m long linear track. His motion is described by the graph of his position vs. time, below.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 40P
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An athlete is training on a 100 m long linear track. His motion is described by the graph of his position vs. time, below.
x (m)
100
80
60
40
20
A
---Select---
---Select---
---Select---
10 20 30 40 50 60
(a) For each segment of the graph, find the magnitude and direction of the athlete's velocity.
magnitude VA
m/s
direction VA
magnitude VB
direction VB
magnitude vc
direction VC
magnitude VD
direction VD
---Select---
B
---Select---
m/s
m/s
C
m/s
D
t(s)
(b) What are the magnitude and direction of the athlete's average velocity over the entire 60 s interval?
magnitude
m/s
direction
Transcribed Image Text:An athlete is training on a 100 m long linear track. His motion is described by the graph of his position vs. time, below. x (m) 100 80 60 40 20 A ---Select--- ---Select--- ---Select--- 10 20 30 40 50 60 (a) For each segment of the graph, find the magnitude and direction of the athlete's velocity. magnitude VA m/s direction VA magnitude VB direction VB magnitude vc direction VC magnitude VD direction VD ---Select--- B ---Select--- m/s m/s C m/s D t(s) (b) What are the magnitude and direction of the athlete's average velocity over the entire 60 s interval? magnitude m/s direction
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