Engineering Mechanics - DynamicsChapter 12vx19.093−ms=vy13.329−ms=v19.683ms=Accelerationsax1a−b2cosbt1()=ay1c−b2sin1=a1ax12ay12+=ax18.323ms2=ay114.549−ms2=a116.761ms2=Pathxacos=ycsin=Thusxa⎛⎝⎞⎠2yc⎛⎝⎞⎠2+1=QEDProblem 12–70A particle travels along the curve from A to B in time t1. If it takes time t2for it to go from Ato C, determine its average velocity when it goes from B to C.Given:t11s=t23s=r20 m=Solution:rAC2r0⎛⎝⎞⎠=rABrr⎛⎝⎞⎠=vaverACrAB
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