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Physics
Physics
Problem
An object on a straight track moves
4.0
m
4.0\,\text{m}
4.0
m
to the left. If the positive
x
x
x
-direction is defined as to the right, what is the signed value of the object’s displacement? a)
+
4.0
m
+4.0\,\text{m}
+
4.0
m
b)
−
4.0
m
-4.0\,\text{m}
−
4.0
m
c)
0
m
0\,\text{m}
0
m
d)
−
8.0
m
-8.0\,\text{m}
−
8.0
m
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