# exam2 - UD Phys207W09 Exam II Name AAS:ve You must show all...

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UD Phys207W09 Exam II Name AAS,:ve You must show all of your work for credit. Include units with your numerical answers. 1. [10) A particle of m=21% is in a region in which the potential curve, U(x), is represented graphically below; only conservative forces are present. The particle has a velocity of v=(5) 1 / 2 m/s at x=29m. What is the condition for the particle to exist in a region? What is the total mechanical energy of the particle? Draw it on the graph. Locate the 'turning points' on the graph by circling them. Locate regions on the graph where the force on the particle is zero, equilibrium points, label them on the graph with triangles. Now specify whether they are stable, unstable, or neutral equilibrium points on the graph. +L. ) ez ) I E-u . 0 2- /CC pr)%a O'N v(k-Aryk) kEoc=40 -1- =- - E c1/4.1k E G744714- bez142.k. ( 7 14 , o4eivethkk pme4t

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on the block by the quarter circle. X. I /ice tv„ --P -f J-F —UP i rY ‘O C:91o: --- T r g Fp ioc R Trf - u Ffrf) teLTA C tirv -e- 11--z aft F 3 ES T //LC rr& 2. [30] A block of mass m is compressed against a spring, a distance x, on a frictionless
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