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Physics
Physics
Problem
The final position of a toy car on a straight track is
x
f
=
+
3
m
x_f = +3\,\text{m}
x
f
=
+
3
m
. During its run, its displacement was
−
9
m
-9\,\text{m}
−
9
m
. Determine its initial position. a)
−
6
m
-6\,\text{m}
−
6
m
b)
+
6
m
+6\,\text{m}
+
6
m
c)
+
12
m
+12\,\text{m}
+
12
m
d)
−
12
m
-12\,\text{m}
−
12
m
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