PHYS 218 Midterm: Texas A&M Physics 218 Exam3_Fall_2010_solutions
Document Summary
Do not fill out the information below until instructed to do so! All work must be shown to get credit for the answer marked. Put your initials here after reading the above instructions:__________ Table to be filled by the graders. The slab then falls between the cylinders making them rotate without slipping. Identify external cylinders+slab system. forces to the the. Yes, the mechanical energy is conserved as the work of the non- conservative forces is zero. Since the slab went without slipping we know v = f r. Obviously the cylinders rotate in opposite ways. Part 2: (25p) energy and kinematics. Question 2. 1. 1: a disk of mass m and radius r is spinning with angular velocity . The disk is spinning and slipping with respect to the surface of the ground. Initially the disk is just spinning but not moving in the horizontal direction. There is friction between the disk and the table with kinetic coefficient k. g m.
