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Physics
Physics
Problem
Three displacement vectors are given as
P
=
4
i
^
−
3
j
^
m
\mathbf{P}=4\,\hat{i}-3\,\hat{j}\,\text{m}
P
=
4
i
^
−
3
j
^
m
,
Q
=
−
1
i
^
+
2
j
^
m
\mathbf{Q}=-1\,\hat{i}+2\,\hat{j}\,\text{m}
Q
=
−
1
i
^
+
2
j
^
m
and
R
=
0.5
i
^
−
1.5
j
^
m
\mathbf{R}=0.5\,\hat{i}-1.5\,\hat{j}\,\text{m}
R
=
0.5
i
^
−
1.5
j
^
m
. a. (i) Calculate the resultant vector
S
=
P
+
Q
+
R
\mathbf{S}=\mathbf{P}+\mathbf{Q}+\mathbf{R}
S
=
P
+
Q
+
R
in component form. b. (ii) Find the magnitude of
S
\mathbf{S}
S
.
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