Problem $15\mathrm{.}113-$ The accelerations of points $A,B,$ and $C$ of the drums

A $3-$in$-$radius drum is rigidly attached to a $5-$in$-$radius drum as shown. One of the drums rolls without sliding on the surface shown, and a cord is wound around the other drum. Knowing that at the instant shown. point A has a velocity of $4\mathrm{.}750in\frac{.}{s}$ and an acceleration of $15\mathrm{.}00in\frac{.}{s^2},$ both directed to the right, determine the accelerations of points $A,B,$ and $C$ of the drums.

The accelerations of point $B$ is $$ in$.\frac{?}{s^2}$

The accelerations of point $A$ is $$ in$.\frac{?}{s^{2}z}$

The accelerations of point $C$ is $$ in$.\frac{?}{s^2}$