Two masses, $M$ and $m$, are joined by an inextensible string that runs over a frictionless pulley. Mass $M$ is on a frictionless slope inclined at an angle $\theta$ to the horizontal. Initially, both masses are held at rest and are then released. Mass $M$ moves with acceleration down the slope. Which expression must be correct?
- A$\sin\theta < \frac{m}{M}$
- B$\cos\theta < \frac{m}{M}$
- C$\sin\theta > \frac{m}{M}$
- D$\cos\theta > \frac{m}{M}$