PHYSICS 7A Study Guide - Midterm Guide: Wood Block, Elastic Collision, Friction
Document Summary
Physics 7a, spring 2012, sections 2 and 3, instructor: professor adrian lee. Show your reasoning carefully so that we can be sure that you derived the answer rather than guessing it or relying on memory; in addition, this enables us to give partial credit. You may use one double-sided 3. 5 x 5 index cards of notes. A ri e with mass mr and a block of wood with mass mw are suspended so that they can both swing freely. Initially, both the wood block and ri e are stationary. Consider three spheres lined up in a row along the x-axis with masses m1 = m , m2 = m/2, and m3 = m . The sphere with m = m1 has an initial velocity v0 in the +x direction, while the other two spheres are initially at rest.
