35. Kinetics - Path Variables

35. Kinetics - Path Variables - ME 270 - Basic Mechanics I...

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Unformatted text preview: ME 270 - Basic Mechanics I - Group Quiz Name/Group #2 __________ Group Members: 1) _________ 2) Date: _____ Period: _______ 3) _______ 4) Given: A 51b collar following a smooth circular guide has an attached spring as shown with a spring constant of 2 lb/ft and an unstretched length of 3 ft. At the instant shown, the collar is positioned such that 6 = 30° and has a speed of 4 ft/s. :[MM (2'st Find: fairer 0“: 6L Probs. 13—76/13—77 (a) Determine the Zrmal force on the collar. 36. (b) Determine the ' of the collar. N (c) If the collar were positioned at 6 = 30° and released F —‘ from rest, what would be the direction of the \Lif acceleration at the instant the collar were released? / / I n / / 3 o / o ,3” [KW sum: 3’ (a) 24’} = - PS}, 5m 30° +mv35in30°=xm at =/mv‘ Z. ZFVk == EPCoswo-‘N +M3co530°=ManWm3€5 EF-a HM.) == 2?. (3 cos3o9 ~3j = Em 2F; 53”, N = E, cosso°+xm3 £05302”; 1/? N = 431C0530‘+ 56o530°~é§3§= "e;I7:::iSEE—éifiié'é}?30‘? Ljéim __—_~-_.__ M ~M._m Wfiw-flqfl—W~~W .____— ...
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This note was uploaded on 05/15/2010 for the course ME 200 taught by Professor Gal during the Spring '08 term at Purdue University-West Lafayette.

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35. Kinetics - Path Variables - ME 270 - Basic Mechanics I...

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