- #1

- 385

- 0

## Main Question or Discussion Point

hello people ,

We know that work done is scalar because it’s the product of two vector quantities so it needs only magnitude to be defined.

But look …W = Fd cos theta

When the acting force is in the opposite direction to displacement then theta=180

Therefore the work done becomes negative in this case so work is affected by the directions and its scalar so how?

We know that work done is scalar because it’s the product of two vector quantities so it needs only magnitude to be defined.

But look …W = Fd cos theta

When the acting force is in the opposite direction to displacement then theta=180

Therefore the work done becomes negative in this case so work is affected by the directions and its scalar so how?