Physics Two Dimensional Motion Question 145
Question: Which of the following is correct?
Options:
A) $ \vec{A},.,\vec{B}\ne \vec{B},.,\vec{A} $ B) $ \vec{A},.(\vec{B}+\vec{C})=\vec{A},.,\vec{B}+\vec{C} $ C) $ \vec{A}\times \vec{B}\ne \vec{B}\times \vec{A} $ D) $ \vec{A},.(\vec{B}+\vec{C})\ne \vec{A},.,\vec{B}+\vec{A},.,\vec{C} $
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Answer:
Correct Answer: C
Solution:
[c] Scalar product is distributive over addition. $ \overrightarrow{A}\times \overrightarrow{C}=AC,\sin 0{}^\circ =0 $
BETA
