A 0.62 kg glider slides frictionlessly on an 3-m air track inclined at an angle of 12 degrees. The glider is connected to a lightweight string which passes over a low-friction pulley at the top of the air track. The other end of the string is connected to a spring scale (whose mass is 0.05 kg), which is connected to a 0.17 kg weight. (a) If you hold the glider at rest, what will the scale read? (b) If you then release the glider, will it accelerate up or down the incline? (c) What will the scale read as the system accelerates?