Question

Find the resultant of the three vectors shown in figure
1147650_f52d0572d0d54904876e5d685a972c45.png

Solution
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A=5cos370^i+5sin370^j
B=3^i
C=2^j
R=(5cos370+3)^i+(5sin370+2)^j
=(5×45+3)^i+(5×35+2)^j
=(4+3)^i+(3+2)^j
R=7^i+5^j
|R|=72+52
=49+25
=74=8.6m

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