A conveyor belt is moving with velocity v to the east. A block with velocity v to the south slides from the ground onto the conveyor belt. The coefficient of friction between the block and the belt is \mu. The block stops slipping after a time
Answer Choices
A. \frac{v}{\sqrt{2} \mu g}
B. \frac{v}{\mu g}
C. \frac{\sqrt{2} v}{\mu g}
D. \frac{2 v}{\mu g}
E. The block never stops slipping.