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 D B 60 40 A 20 t (s) 60 10 20 30 40 50 (a) For each segment of the graph, find the magnitude and direction of the athlete's velocity. magnitude va m/s direction VA positive x magnitude vB m/s direction VB The magnitude is zero. v magnitude vc m/s direction vC negative x magnitude vp m/s direction VD positive x (b) What are the magnitude and direction of the athlete's average velocity over the entire 60 s interval? magnitude m/s direction positive x

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
Chapter2: Motion In One Dimension
Section: Chapter Questions
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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
D
B
60
40
A
20
t (s)
60
10
20
30
40
50
(a) For each segment of the graph, find the magnitude and direction of the athlete's velocity.
magnitude va
m/s
direction VA
positive x
magnitude vB
m/s
direction VB
The magnitude is zero. v
magnitude vc
m/s
direction vC
negative x
magnitude vp
m/s
direction VD
positive x
(b) What are the magnitude and direction of the athlete's average velocity over the entire 60 s interval?
magnitude
m/s
direction
positive x
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 D B 60 40 A 20 t (s) 60 10 20 30 40 50 (a) For each segment of the graph, find the magnitude and direction of the athlete's velocity. magnitude va m/s direction VA positive x magnitude vB m/s direction VB The magnitude is zero. v magnitude vc m/s direction vC negative x magnitude vp m/s direction VD positive x (b) What are the magnitude and direction of the athlete's average velocity over the entire 60 s interval? magnitude m/s direction positive x
Expert Solution
Step 1

Given that:

length of the track is x=100 m

 

Physics homework question answer, step 1, image 1

It is required to determine the magnitude of the vector and the average velocity over the 60 seconds interval.

 

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