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Find the resultant of the three vectors ...

Find the resultant of the three vectors shown in figure (2W1).
.

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The correct Answer is:
A, D
`S = S_1+S_2 +S_3`
`=[(5cos 37^@)hati + (5sin 37^@)hatj]+3hati+2hatj`
`=(4hati+3hatj)+ 3hati + 2hatj`
`=(7hati+5hatj)m`

`S = sqrt((7)^2 + (5)^2) = sqrt74 m`
`tan theta = (5)/(7)`
or `theta^(-1) ((5)/(7))` .
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  14. The resultant of vectors vec(OA) and vec(OB) is peerpendicular to vec(...

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  15. Find the components of a vector A = 2hati + 3hatj along the direction...

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