A student performs an investigation by dragging four different boxes along the floor. The results are presented in the table. On which box is the greatest amount of work done?
- Africtional force $5\,\text{N}$, distance $4\,\text{m}$
- Bfrictional force $10\,\text{N}$, distance $2\,\text{m}$
- Cfrictional force $15\,\text{N}$, distance $2\,\text{m}$
- Dfrictional force $20\,\text{N}$, distance $4\,\text{m}$