PHY 9A Study Guide - Final Guide: Circular Motion, Angular Acceleration, Friction
Document Summary
General instructions/information: this exam is closed book except for a single formula sheet. Please show all your work, and give units for all answers and on all graphs. Credit will only be given for complete solutions. The acceleration of gravity is g=9. 8 m/s2 downwards. The moment of inertia of a uniform disk of mass m and radius r about a vertical axis through its center is i = 1. The moment of inertia of a uniform hoop of mass m and radius r about a vertical axis through its center is i = m r2. Sphere a has mass ma = 0. 05 kg, velocity magnitude va = 2. 0 m/s making an angle = 30 with the +x axis. Sphere b has mass mb = 0. 03 kg, velocity magnitude vb = 3. 0 m/s and moves along the +y axis. Sphere c has mass mc = 0. 04 kg, velocity magnitude vc = 4. 0 m/s and moves along the +x axis.
