100%(1)1 out of 1 people found this document helpful
This preview shows page 1 - 3 out of 3 pages.
UC Berkeley, Physics 7A, Summer 2016, ReinschFinal Exam Part 2This exam is closed book and closed notes.You are allowed two sheets of 8.5” x 11”paper containing hand-written notes, front and back.Calculators are not allowed.Please make sure that you do the following:-Write your name, discussion number, and ID number on yourbluebook/greenbook.-Make sure that the grader knows what should be graded by circling your finalanswer.-You must explain how you arrived at your answers.
Problem 1A physical pendulum is made from two thin uniform disks of radiusR(think ofthin coins) and a massless rod.Each of the disks has massM, so the total massis 2M.The distance from the center of the upper disk to the pivot point isL1(which is greater thanR). The distance from the center of the lower disk to thepivot point isL2(which is greater thanL1).The diagram at right shows thependulum and a vertical reference line.