College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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The first image is the practice problem and the second image is the answers I got but it's saying they're wrong. 

Object
(a)
(b)
(c)
(d)
Initial velocity
(v_i)
13 m/s
12 m/s
-12 m/s
-13 m/s
Acceleration
(a)
2.6 m/s²
-2.5 m/s²
2.8 m/s²
-3.1 m/s²
Time
(t)
2.4 s
2.4 s
2.4 s
2.4 s
Final speed
(v_f)
18.4 m/s
10.4 m/s
-7.2 m/s
-12.52 m/s
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Transcribed Image Text:Object (a) (b) (c) (d) Initial velocity (v_i) 13 m/s 12 m/s -12 m/s -13 m/s Acceleration (a) 2.6 m/s² -2.5 m/s² 2.8 m/s² -3.1 m/s² Time (t) 2.4 s 2.4 s 2.4 s 2.4 s Final speed (v_f) 18.4 m/s 10.4 m/s -7.2 m/s -12.52 m/s
The initial velocity and acceleration of four moving objects at a given instant in time are given in the
following table. Determine the final speed of each of the objects, assuming that the time elapsed since t =
Os is 2.4 s.
(a)
(b)
(c)
(d)
Initial velocity vo Acceleration a
+ 13m/s
+2.6m/s²
+ 12m/s
-2.5m/s²
- 12m/s
+2.8m/s²
- 13m/s
-3.1m/s²
(a) Final speed =
18
(b) Final speed =
(c) Final speed = i
(d) Final speed =
i
i 1.0E1
-7.0
-13
m/s
m/s
m/s
m/s
<
<
expand button
Transcribed Image Text:The initial velocity and acceleration of four moving objects at a given instant in time are given in the following table. Determine the final speed of each of the objects, assuming that the time elapsed since t = Os is 2.4 s. (a) (b) (c) (d) Initial velocity vo Acceleration a + 13m/s +2.6m/s² + 12m/s -2.5m/s² - 12m/s +2.8m/s² - 13m/s -3.1m/s² (a) Final speed = 18 (b) Final speed = (c) Final speed = i (d) Final speed = i i 1.0E1 -7.0 -13 m/s m/s m/s m/s < <
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