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Vector vecA is 2 cm long and is 60° abo...

Vector `vecA` is 2 cm long and is 60° above the x - axis in the first quadrant, vector `vecB` is 2cm long and is 60° below the x - axis in the fourth quadrant. Find `vecA + vecB`

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`vecR=vecA+vecB`
`vecR = 2cos60^(0)hat(i)+2sin60hat(j)+2cos60hat(i)-2sin60hat(j)`
`vecR = 4cos60hat(i) = 2hat(i)`
`:.2cm, along x-axis
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