Top secret crates used for shipping coasters are released down an incline at point A with a speed of 2 m/s that is set at an angle of 29. The crates slide down the ramp with frictional value ik = 0.3 onto a conveyor belt that moves at a rate of 5 m/s. If the length of BC is 7 meters, find the length of AB necessary for the packages to arrive at the conveyor at exactly 5 m/s. A 5m/s- O = 29 B+ 7m C (put units in the second box)