A block is let go from rest at the top of a slope that is inclined at an angle to the horizontal. As shown in the diagram, the slope has length $L$. No resistive forces act on the block. What is the block’s speed at the bottom of the slope?
- A$4.43\sqrt{L\cos\theta}$
- B$4.43\sqrt{L\sin\theta}$
- C$19.6L\cos\theta$
- D$19.6L\sin\theta$