problem1ch12_023_0001

problem1ch12_023_0001 - ‘12-“ A motorcycle starts from...

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Unformatted text preview: ‘12-“. A motorcycle starts from rest at s = 0 and travels along a straight road with the speed shown by the A: ‘ I ' ' 5 0-: graph. Determine the motorcycle's acceleration and a 8 ﬂ = o A, position when! = Ssandt - 12:. d! A: :2 I’d :-o - gum) + a—axs; = so .1-30In A- Alt-12: asg=§§=—lnlf A“ A: I [rd -1 - 1 .. -1 2 2 s-o — 2m» + (to 4m) + 2us 10x5) ztsxsxsm 1-48:- An- 12-45. Anahplmehndsmthesuaightnmwayoﬁginally :’ travelingatllo ft/s whensso. lfitiswbjeetedtotlw : deceleraﬂomshowmdetenninethetimet' needed tostop ' timplmandoomtmetthes—lgmphforthemotion. V. = llOll/l Av = Ind! 0—110 I —3(15-5) - 8(20-15) - 3(f- 20) (:3333 ...
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