NEETPhysicsMotion in A PlaneMCQ+4 / −1
If the angle between the vectors and is , the value of the product is equal to
- ABA2sin
- BBA2cos
- CBA2sincos
- Dzero.
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Correct answer: D

Let
The cross product of and is perpendicular to the plane containing and
i.e. perpendicular to
If a dot product of this cross product and is taken, as
the cross product is perpendicular to , = 0
Therefore product of
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