8. Figure 1 below is a plot of the displacement x of an object as a function of time t. The dashed vertical lines separate the one second intervals. During the first time interval #1 (t = 0 to t = 1 s) of Fig. 1 decide if the velocity of the object is (a) zero (b) constant and positive, (c) constant and negative, (d) increasing and positive, (e) increasing and negative, (f) decreasing and positive, or (g) decreasing and negative. (You may use a ruler to check the slopes of x vs t for the various time intervals.) Also decide for the same intervals if the acceleration is (note do not fix on one point in an interval) (h) positive (i) negative (j) zero. Explain your answers. Repeat the above for the other four time intervals in Figure 1. *5 *3 *2 200- 100- 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 1(a) Fig. 1

8. Figure 1 below is a plot of the displacement x of an object as a function of time t. The dashed vertical lines separate the one second intervals. During the first time interval #1 (t = 0 to t = 1 s) of Fig. 1 decide if the velocity of the object is (a) zero (b) constant and positive, (c) constant and negative, (d) increasing and positive, (e) increasing and negative, (f) decreasing and positive, or (g) decreasing and negative. (You may use a ruler to check the slopes of x vs t for the various time intervals.) Also decide for the same intervals if the acceleration is (note do not fix on one point in an interval) (h) positive (i) negative (j) zero. Explain your answers. Repeat the above for the other four time intervals in Figure 1. 5 3 *2 200- 100- 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 1(a) Fig. 1

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Description: 8. Figure 1 below is a plot of the displacement x of an object as a function of time t.The dashed vertical lines separate the one second intervals. During the first timeinterval #1 (t = 0 to t = 1 s) of Fig. 1 decide if the velocity of the object is

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter3: Vectors

Section: Chapter Questions

Problem 37PQ

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Concept explainers

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.

Topic Video

Question

8. Figure 1 below is a plot of the displacement x of an object as a function of time t.
The dashed vertical lines separate the one second intervals. During the first time
interval #1 (t = 0 to t = 1 s) of Fig. 1 decide if the velocity of the object is (a) zero
(b) constant and positive, (c) constant and negative, (d) increasing and positive,
(e) increasing and negative, (f) decreasing and positive, or (g) decreasing and
negative. (You may use a ruler to check the slopes of x vs t for the various time
intervals.) Also decide for the same intervals if the acceleration is (note do not fix
on one point in an interval) (h) positive (i) negative (j) zero. Explain your answers.
Repeat the above for the other four time intervals in Figure 1.
*5
*3
*2
200
100-
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
1(a)
F1g. 1

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