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  4. Two vectors vecA and vecB inclined at an angle θ have a resultant vecR which makes an angle α with vecA . If the directions of vecA and vecB are interchanged, the resultant will have the same

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Q. Two vectors $\vec{A}$ and $\vec{B}$ inclined at an angle $\theta$ have a resultant $\vec{R}$ which makes an angle $\alpha$ with $\vec{A}$ . If the directions of $\vec{A}$ and $\vec{B}$ are interchanged, the resultant will have the same

Motion in a Plane

Solution:

Neither the magnitude of vectors nor the angle between the vectors is changed. So, magnitude of the resultant remains unchanged. However, the direction of the resultant will be changed.