Discussion-09b

# Discussion-09b - situation Draw the free body diagram...

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ircular Motion Circular Motion Discussion #9b – Ch. 5.1 – 5.7 Physics 125–Fall 2010 Dr. Mike Melnichuk [email protected] Office: 2409 Randall Lab [email protected] ffice Hours: 2:00 :00 / Mon Rm 1416 Randall Lab in Rm. 1416 Randall Lab.

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Example #1 Which (real) force plays the role of centripetal force in this situation? A. the gravitational force B. the normal force C. the tension force D. the frictional force
Example #2 A woman at a recreation park rides in a “ROTOR”. After the rotor reaches a certain speed she remains stuck on the inside wall; her feet do not touch e oor hich eal) rce lays e le f entripetal rce is the floor. Which (real) force plays the role of centripetal force in this

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Unformatted text preview: situation? Draw the free body diagram; assume (static) friction. A. the gravitational force B. the normal force the tension force C. the tension force D. the frictional force Test #2 In the previous problem, if the radius of the ROTOR is r and the coefficient of static friction between the woman and the inside wall is μ s , figure out the inimum angential) peed s nction f nd t hich e minimum (tangential) speed v min as a function of g , μ s and r , at which the person just about starts to slide down toward the floor. s min μ A. v = min s rg B. v = μ rg s min μ r C. v = g s min μ g D. v = r min s rg E. v = μ NOTE Read Subchapter 5.7...
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## This note was uploaded on 12/08/2011 for the course PHYSICS 125 taught by Professor Unknown during the Fall '08 term at University of Michigan.

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Discussion-09b - situation Draw the free body diagram...

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