3. Answer the following questions about the car whose motion is graphed below: D
40
30
20
d (m)
10 A
0
-10
-20
-30
B
0 20
40
60
80
a.
b.
c.
t(s)
When was the car 20 m west of the origin?
where was the car at 50 s?
The car suddenly reversed direction. When and where did that occur?

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