(Solved): The cylinder A has a weight of 15lb and is attached to the 20lb block B using the cord and pulle ...

The cylinder $$A$$ has a weight of $$15\mathrm{lb}$$ and is attached to the $$20?\mathrm{lb}$$ block $$B$$ using the cord and pulley system shown in (Figure 1). The coefficients of static friction are indicated in the figure. Determine the acceleration of the block when it is released. Express your answer in feet per second squared to three significant figures.