Problem $11\mathrm{.}124-$ Relative$/$dependent motion of particles with given velocities and accelerations

For the system shown, block A has a velocity of $8\mathrm{.}50i\frac{n}{s}$ and an acceleration of $6\mathrm{.}50i\frac{n}{s^2}$ both directed down the incline.

Problem $11\mathrm{.}124.$b $-$ Relative$/$dependent motion of particles with given velocities and accelerations$-$find acceleration

Determine the acceleration of block $B.($Round the acceleration value to three decimal places.$)$

The acceleration of block $B$ is in$/$s $s^2$ at an angle of