Kinematics Question 598
Question: If none of the vectors $ \vec{A},\vec{B} $ and $ \vec{C} $ are zero and if $ \vec{A}\times \vec{B}=0 $ ,$ \vec{B}\times \vec{C}=0 $ the value of $ \vec{A}\times \vec{C} $ it’s:
Options:
A) unity
B)zero
C) $ B^{2} $
D)$ ACcos\theta $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] For the given conditions, vectors $ {\vec{A}, \vec{B}} $
and $ \vec{C} $ are parallel, so $ \overrightarrow{A}\times \overrightarrow{C}=AC\sin 0{}^\circ =0 $
