Kinematics Question 299

Question: Two adjacent sides of a parallelogram are represented by the two vectors $ \hat{i}+2\hat{j}+3\hat{k} $ and $ 3\hat{i}-2\hat{j}+\hat{k} $ . What is the area of parallelogram [AMU 1997]

Options:

A) $ 10\sqrt{2} $

B) $ 20 $

C) $ 2\sqrt{10} $

D) 10

Show Answer

Answer:

Correct Answer: A

Solution:

$ Mass=\frac{Force}{Acceleration}=\frac{|\vec{F}|}{a} $ = $ \frac{\sqrt{36+64+100}}{1} $

$ =10\sqrt{2}\ kg $



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