Question
Asked Nov 21, 2019
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The graph below plots the position versus time for a particular body moving along the x-axis. What is the average velocity over the following time intervals (in m/s)? (Indicate the direction with the signs of your answers.)
A coordinate plane has a horizontal axis labeled t (s) and a vertical axis labeled x (m). There are five connected line segments.
  • The first goes from (0, 0) to (2.00, 14.0);
  • the second from (2.00, 14.0) to (4.00, 6.00);
  • the third from (4.00, 6.00) to (5.00, 6.00);
  • the fourth from (5.00, 6.00) to (7.00, −8.00);
  • and the fifth from (7.00, −8.00) to (8.00, 0).
14
12
10
4
2
t(s)
1
2
4
7
-2
-4
-6
-8
i
LO
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14 12 10 4 2 t(s) 1 2 4 7 -2 -4 -6 -8 i LO

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Expert Answer

Step 1

(a)

The average velocity for the time interval (0, 0) to (2.00, 14.0) is,

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x2-X ang t- 14m -0m 2s 0s 14m 2s =7m/s

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Step 2

(b)

The average velocity for the time interval (2.00, 14.0) to (4.00, 6.00) is,

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x2- ag 14m -6m 4s 2s 8m 2s = 4m/s

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Step 3

(c)

The average velocity for the time interval (4.00, 6.00) to (5.00, 6.00) is,

(d)

The av...

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avg t- 6m 6m 5s-4s 0m/s X2- t2-4 -8m -6m 7s-5s -14m 2s =-7m/s

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Physics

Kinematics

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