Required information

Problem $12\mathrm{.}031-$ Blocks in a pulley system

A $18-lb$ block $B$ rests as shown on a $24-lb$ bracket $A.$ The coefficients of

friction are ${}_s=0\mathrm{.}30$ and ${}_k=0\mathrm{.}25$ between block $B$ and bracket $A,$

and there is no friction in the pulley or between the bracket and the

horizontal surface.

Problem $12\mathrm{.}031.$c $-$ Acceleration of blocks in the pulley system

If the weight of block $C$ is $10\%$ larger than the answer found in Part a$,$ determine the

accelerations of $A,B$ and $C.($Round the final answers to three decimal places.$)$

The acceleration of $A$ is

$f\frac{t}{s^2}$

The acceleration of $B$ is

$f\frac{t}{s^2}$

The acceleration of $C$ is

$f\frac{t}{s^2}$

darr.