A crane at a construction site raises bricks with a total mass $200\,\text{kg}$, starting from rest on the ground, and does so with constant acceleration. Once the bricks are $5.0\,\text{m}$ above the ground, their speed is $5.0\,\text{m s}^{-1}$. How much work is done in this process?
- A$2.5\,\text{kJ}$
- B$10.0\,\text{kJ}$
- C$12.5\,\text{kJ}$
- D$35\,\text{kJ}$