Question

Evaluate \[\hat{j}\times\hat{k}\].

Options

• \[\hat{i}\]

• \[-\hat{i}\]

• \[-\hat{k}\]

• \[\hat{j}\]

Answer 1

The cyclic unit vector relation is \[\hat{j}\times\hat{k}=\hat{i}\]. The order of the two unit vectors determines the direction.