An object with weight $15.0\ \text{N}$ is drawn across a horizontal surface at a steady speed of $2.00\ \text{m s}^{-1}$. The pulling force on the object is $12.0\ \text{N}$ acting at $30^\circ$ to the horizontal, as shown. What is the power needed to move the object?
- A$12.0\ \text{W}$
- B$20.8\ \text{W}$
- C$24.0\ \text{W}$
- D$30.0\ \text{W}$