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Find the resultant of the vectors shown ...

Find the resultant of the vectors shown in figure.

Text Solution

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`vecR = vec(OA) + vec(AB) + vec(BC)`
`vecR = (5cos 37 hati + 5 sin 37 hatj) + 3hati + 4hatj`
`vecR = 4hati + 3hatj + 4hatj`
`vecR = 7hati + 7hatj, therefore R = 7sqrt(2)` cm and `alpha = 45^(@)` with horizontal.
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