Forces and equilibrium — practice question

A box with mass $25\,\text{kg}$ is dragged in a straight line over a horizontal floor. It starts from rest at point $A$ and reaches point $B$ with speed $3\,\text{m s}^{-1}$. The distance $AB$ is $15\,\text{m}$. The pulling force has magnitude $220\,\text{N}$ and acts at an angle $\alpha$ above the horizontal. As the box moves from $A$ to $B$, the work done against the resistance to motion on the box is $3000\,\text{J}$.