Vectors Question 153
Question: A vector $ \overrightarrow{A} $ points vertically upward and $ \overrightarrow{B} $ points towards north. The vector product $ \overrightarrow{A}\times \overrightarrow{B} $ is
[UPSEAT 2000]
Options:
A) Zero
Along west coast
Along the east
D) Vertically downward
Correct Answer: B Direction of vector A is along z-axis \ $ \vec{A}=a\hat{k} $ Direction of vector B is towards north \ $ \vec{B}=b\hat{j} $ Now $ \vec{A}\times \vec{B}=a\hat{k}\times b\hat{j}=ab(-\hat{i}) $ \ The direction is $ \vec{A}\times \vec{B} $ is along west.
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Answer:
Solution:
BETA
