A lawn roller is a solid cylinder of mass $$M$$ and radius $$R$$. As shown in the figure, it is pulled at its center by a horizontal force $$F$$ and rolls without slipping on a horizontal surface. Then the

A

acceleration of the cylinder is $$\frac{2F}{M}$$

B

force of friction acting on the cylinder is $$\frac{2F}{3M}$$

C

coefficient of friction needed to prevent slipping is at least $$\frac{F}{3Mg}$$

D

minimum coefficient of friction to prevent slipping is $$\frac{2F}{3Mg}$$