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Three co-planar vectors (x-y plane ) hav...

Three co-planar vectors (`x-y` plane ) having magnitude `3sqrt(2),6,10` are shown in the figure. Find the componenent of resultant of three vectors along the `x` axis as shown.
.

A

`7`

B

`-10`

C

`9`

D

`-7`

Text Solution

Verified by Experts

The correct Answer is:
D
`3 sqrt(2) cos 45^(@) - 10=-7`.
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