A gecko crawls vertically up and down a wall. Its motion is shown on the following graph of vertical position yyy vs. time ttt.
Graph of y (in meters) vs. t (in seconds) that starts at 6 m at 0sec, decreases linearly to 2m at 4 sec, stays constant at 2m from 4 sec to 7 sec, increases linearly to 5 m from 7 sec to 9 sec, then stays constant until 10 sec
Graph of y (in meters) vs. t (in seconds) that starts at 6 m at 0sec, decreases linearly to 2m at 4 sec, stays constant at 2m from 4 sec to 7 sec, increases linearly to 5 m from 7 sec to 9 sec, then stays constant until 10 sec
What is the average velocity of the gecko between the times t=0\text{ s}t=0 st, equals, 0, start text, space, s, end text and t=7\text{ s}t=7 st, equals, 7, start text, space, s, end text?
Choose 1
Choose 1
(Choice A)
A
0.57\,\dfrac{\text m}{\text s}0.57
s
m
0, point, 57, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
(Choice B)
B
-0.57\,\dfrac{\text m}{\text s}−0.57
s
m
minus, 0, point, 57, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
(Choice C, Checked)
C
-1.0\,\dfrac{\text m}{\text s}−1.0
s
m
minus, 1, point, 0, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction
(Choice D)
D
1.0\,\dfrac{\text m}{\text s}1.0
s
m
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