2. (This is an old exam problem.) A meter stick is elevated at a 0 = 30 angle. A spool consists of a cylinder of radius 2 cm with two disks afxed on either end; the disks have a radius of 10 cm. The cylinder is very light; you may assume all of the mass of the spool is in the disks. The spool is placed at the top of the meter stick so that the cylinder is touching the stick; when it is released, it rolls without slipping to the bottom. ( The moment of inertia of a disk is mr2). In this problem, you will calculate the speed of the spool at the bottom. Rules for this problem: You may solve this problem in either symbols or numbers. If you use symbols, you must tell me the physical values of each symbol that you use (for instance: \"1' = 2 cm\"). If you use numbers, you must retain the units (i.e. write \"10 cm\