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
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
$4\hat j$
$ - (\hat i + \hat j)$
$(\hat j + \hat k)$
$( - 4\hat i)$
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
Let $F_{1}=x \hat{i}$
As, $F_{1} \times F_{2}=0$ and only $\hat{i} \times \hat{i}=0$
$\therefore F_{2}=-4 i$