Question

When a vector is multiplied by number less then -1 then its magnitude and direction to original vector respectively are?

Answer 1

Magnitude: Increases
Direction: Turns by `180°`

Explanation:

Let’s say there is a force of `"80 N"` acting towards north.

If this force vector is multiplied by a number `-2` then the magnitude of new force is `"160 N"` and it’s direction is towards south.