A block with mass is on a frictionless ramp that makes an angle of & to the horizontal. A thin string runs from the block, parallel to the ramp, up

and over a massless frictionless pulley, and down to a hanging block with mass m3- Thes system is held in place, then released. What is the acceleration of the hanging block? Use downward as the positive direction. \frac{\left(m_{1}-m_{1} \sin \theta\right)_{5}}{m+m_{2}} \frac{\left(m_{2}-m_{1} \cos \theta\right) \mathrm{q}}{m_{1}+m_{2}} \text { } \underbrace{\left(n t_{1}-m_{1} \sin \theta_{k}\right.}{m_{j}} \frac{\left(m_{2}-m_{1}