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PH 101 Midterm: ph101_exam2_A

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turquoisegnu128
31 Jan 2019
School
University of Alabama
Department
PH
Course
PH 101
Professor
All

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Document Summary

Instructions: solve ve of the six problems below, all problems have equal weight. Do your work on separate sheets: you are allowed 1 sheet of standard 8. 5 11 in paper and a calculator. (cid:3) 1. A uniform disk with mass m = 2. 5 kg and radius r = 20 cm is mounted on a xed horizontal axle, as shown below. A block of mass m = 1. 2 kg hangs from a massless cord that is wrapped around the rim of the disk. Find the acceleration of the falling block, the angular acceleration of the disk, and the tension in the cord. Note: the moment of inertia of a disk about its center of mass is i = A mass m is connected to two springs k1 and k2 as shown below. A uniform cylinder of mass m and radius r rolls without slipping down a ramp at angle .

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