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Physics
Physics
Problem
A particle moves from point
P
(
−
2
,
5
)
m
P(-2,\,5)\,\text{m}
P
(
−
2
,
5
)
m
to point
Q
(
3
,
−
1
)
m
Q(3,\,-1)\,\text{m}
Q
(
3
,
−
1
)
m
. What is its displacement vector
Δ
r
\Delta \mathbf r
Δ
r
? a)
3
i
^
−
1
j
^
m
3\,\hat{\mathbf i} - 1\,\hat{\mathbf j}\,\text{m}
3
i
^
−
1
j
^
m
b)
−
5
i
^
+
6
j
^
m
-5\,\hat{\mathbf i} + 6\,\hat{\mathbf j}\,\text{m}
−
5
i
^
+
6
j
^
m
c)
5
i
^
−
6
j
^
m
5\,\hat{\mathbf i} - 6\,\hat{\mathbf j}\,\text{m}
5
i
^
−
6
j
^
m
d)
5
i
^
+
6
j
^
m
5\,\hat{\mathbf i} + 6\,\hat{\mathbf j}\,\text{m}
5
i
^
+
6
j
^
m
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