A body with a weight of $15.0\,\text{N}$ is dragged across a horizontal surface at a steady speed of $2.00\,\text{m s}^{-1}$. The pulling force on the body is $12.0\,\text{N}$ at an angle of $30.0^\circ$ to the horizontal, as illustrated. What is the power used to move the body?
- A$12.0\,\text{W}$
- B$20.8\,\text{W}$
- C$24.0\,\text{W}$
- D$30.0\,\text{W}$