A horizontal force $F$ acts on a frictionless trolley across a distance $s$, causing the trolley’s kinetic energy to rise from $4\,\text{J}$ to $8\,\text{J}$. If the trolley is then acted on by a force of $2F$ over a distance of $2s$, what will the initial kinetic energy of $4\,\text{J}$ increase to?
- A$16\,\text{J}$
- B$20\,\text{J}$
- C$32\,\text{J}$
- D$64\,\text{J}$