finalsol_11

finalsol_11 - Phy 9A-C, Final Solutions, Page 1 of 2 6/8/11...

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Unformatted text preview: Phy 9A-C, Final Solutions, Page 1 of 2 6/8/11 F F Physics 9A-C Final Exam Solutions Cole [1]a)neverb) GMm r 2 r c)decreased)steepeste)position f)equaltog)noneoftheaboveh)centerofmassi)magnitudej) p y . [2]Whenaforceactsonanobject,thecenterofmassoftheobjectwillmoveinthedirectionof theappliedforce;hencethewillmovetotherightinthesamedirectionas theimpulsegiventothestickbythebullet.Thetopofthestickwillmoveto therightandthebottomwilltendtostayatrestuntilitgetspulledbythetop. Itwillmoveasshownbelow.Thisisthesameasafieldgoalkickorkickoff infootball.Thecenterofthefootballmovesinthedirectionofthekick. [3]a)(5pts) v = dx dt = F m 2 d dt cos t v = F m 2 sin t = F m sin t . b)(5pts)Theinitialvelocityisat t =0, v = F m sin t ( ) t = = c)(5pts) F=ma where a = dv dt = F...
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This note was uploaded on 09/28/2011 for the course PHY 9A taught by Professor Svoboda during the Spring '08 term at UC Davis.

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finalsol_11 - Phy 9A-C, Final Solutions, Page 1 of 2 6/8/11...

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