vectors

Question: A vector ${\overrightarrow F _1}$is along the positive X-axis. If its vector product with another vector ${\overrightarrow F _2}$is zero then ${\overrightarrow F _2}$ could be

1) $4\hat j$

2) $ - (\hat i + \hat j)$

3) $(\hat j + \hat k)$

4) $( - 4\hat i)$

Solution:

Explanation: explanation

multiplication-of-vectors

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