Work = Force × Distance × cosθ

where θ is the angle between the force and the displacement.

In this case, the force is applied in the same direction as the displacement, so θ = 0°. Therefore, cosθ = 1.

Substituting the given values into the formula, we get:

Work = 10.0 N × 0.9 m × 1

= 9.0 J

Therefore, the work done in lifting the box a distance of 0.9 m is 9.0 J.