MediumPhysicsfluid
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-- 5. Vector OA (where O is origin) is represented as OA = 3î + 3ĵ. If the vector is rotated by 45° in clockwise direction, the new vector is represented as
A
3*sqrt(2) î
B
3*sqrt(3) ĵ
C
3î
D
3ĵ
Explanation
The initial vector makes an angle of 45° with the x-axis (since x=y=3). Rotating it 45° clockwise brings it onto the x-axis. The magnitude is sqrt(3² + 3²) = 3*sqrt(2). Thus, the new vector is 3*sqrt(2) î.
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