College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:The motion of a car on a track is shown below. What can you say about its velocity and acceleration? Select all apply.
ооо
00
Motion
Detector
14=3s
X4
13=2s MOD
e
X3
The velocity is positive.
The velocity is negative.
The velocity is zero
The acceleration is positive.
The acceleration is negative.
The acceleration is zero.
t₂ = 1s
X₂
t₁ = 0₂
X₁
Positive x
direction
Transcribed Image Text:Determine the acceleration in each case, match the answers with questions.
A car is moving to the right with a constant speed of 20 m/s for 5.0 s.
A car is going to the right, from rest to 20 m/s in 5.0 s.
+
A car is going to the right, from 20 m/s to rest in 5.0 s.
A. acceleration = 4.0 m/s²
B. acceleration = 0
C. acceleration = - - 4.0 m/s²
D. acceleration = 100 m/s²
E. acceleration = -
100 m/s²
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