Quiz for Thursday, September 13.Version A: The total force on a 10 kg mass is given by F - (4lD i. If the mass startsatt 0 s, at rest, at the origin, what is its (a) velocity and (b) position at t: 4 s?/- = -. .r 1^n/^\ n -r-r...: , ..ri- r.1.u,,A;iF: rrrr6 -? f J-t ^+ -\, T|\i'-, 1r, i'-uN5rr\rv\L- 1 r2:q\ \= t'\T*\ v('lt') :',rc,l-ti?i f,\ !.t ' ! rt /?i'' rl r \L -rh\xit''i !,rJ'ri ',Tl'.*:\ *-3"4-^^^IVersion B: The one dimensional motion of a 4kg mass can be given byx(t):(5m) +(2mls)t -(3mls\f . (a)Fort:2s,whatisthenetforce,F,ontheobject?(b) For t:2 s, what is the mass's velocity?-\ t,\ -,\iu r rw\ )\ -\L\-! -- jrb- b S.^f t't':i -: *f*'.5 I tLx) *'r\U'q vt) =*'1\-Kt$Version C:
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This homework help was uploaded on 03/27/2008 for the course PHYS 221 taught by Professor Herrera-siklody during the Fall '08 term at Iowa State.