Kinematics Question 11
Question: The magnitude of vector $ \overrightarrow{A},\overrightarrow{B} $ and $ \overrightarrow{C} $ are respectively 12, 5 and 13 unit and $ \overrightarrow{A}+\overrightarrow{B}=\overrightarrow{C} $ then the angle between $ \overrightarrow{A} $
and $ \overrightarrow{B} $ is [CPMT 1997]
Options:
A) 0
B) $ \pi $
C) $ \pi /2 $
D) $ \pi /4 $
Correct Answer: C $ C=\sqrt{A^{2}+B^{2}} $ The angle between A and b is $ \frac{\pi }{2} $
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