Kinematics Question 597
Question: Which of the following it’s 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} $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Scalar product it’s d it’stributive over addition.
$ \overrightarrow{A}\times \overrightarrow{C}=AC\sin 0{}^\circ =0 $
