What is the average acceleration of the particle during the following time intervals? (Enter your answers in m/s2. Indicate the direction with the signs of your answers.) (i) 0s to 4.00 s -20 X What do you notice about the initial and final velocities along this time interval? What is the change in velocity? What does this imply about the average acceleration? m/s² (ii) 4.00 s to 12.0 s 40 X What is the definition of average acceleration? What are the initial and final times? Read the initial and final velocities from the graph. m/s² (iii) 0 s to 16.0 s m/s²

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter3: Accelerated Motion
Section: Chapter Questions
Problem 82A
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The graph below plots velocity vs. time for a particle moving along a straight path.
v (m/s)
20
15-
10-
LO
5
O
-5
-10
-15-
-20
4
8
12
16
t (s)
Transcribed Image Text:The graph below plots velocity vs. time for a particle moving along a straight path. v (m/s) 20 15- 10- LO 5 O -5 -10 -15- -20 4 8 12 16 t (s)
(a) What is the average acceleration of the particle during the following time intervals? (Enter your answers in m/s². Indicate the direction with the signs of your answers.)
(i) 0 s to 4.00 s
-20
X
What do you notice about the initial and final velocities along this time interval? What is the change in velocity? What does this imply about the average acceleration? m/s²
(ii) 4.00 s to 12.0 s
40
X
What is the definition of average acceleration? What are the initial and final times? Read the initial and final velocities from the graph. m/s²
(iii) 0 s to 16.0 s
m/s²
Transcribed Image Text:(a) What is the average acceleration of the particle during the following time intervals? (Enter your answers in m/s². Indicate the direction with the signs of your answers.) (i) 0 s to 4.00 s -20 X What do you notice about the initial and final velocities along this time interval? What is the change in velocity? What does this imply about the average acceleration? m/s² (ii) 4.00 s to 12.0 s 40 X What is the definition of average acceleration? What are the initial and final times? Read the initial and final velocities from the graph. m/s² (iii) 0 s to 16.0 s m/s²
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(b) What is its instantaneous acceleration at each of the following times? (Enter your answers in m/s². Indicate the direction with the signs of your answers.)
(i) 1.00 s
(ii) 8.00 s
(iii) 14.0 s
m/s²
m/s²
m/s²
Transcribed Image Text:(b) What is its instantaneous acceleration at each of the following times? (Enter your answers in m/s². Indicate the direction with the signs of your answers.) (i) 1.00 s (ii) 8.00 s (iii) 14.0 s m/s² m/s² m/s²
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