TO DO IN CLASS: Usain Bolt's World Record Run Calculation - one-dimensional motion v=v. + at x=x, + v,f+ Wat 12 = v.: +

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To Do In Class Usain Bolt S World Record Run Calculation One Dimensional Motion V V At X X V F Wat 12 V 1 (61.29 KiB) Viewed 58 times

TO DO IN CLASS: Usain Bolt's World Record Run Calculation - one-dimensional motion v=v. + at x=x, + v,f+ Wat 12 = v.: + 2a(x -x) Usian Bolt ran 100 meters in an astonish- ing 9.69 seconds at the Beijing Olympics. ....and lowered that to 9.58 seconds within the next year. Uno DOM WR SSC Lotering 100 Usain Bolton US Olympic Swimming comebacken Assume that it took the first 25 meters for him to get up to full of the race was run at con-stant speed. Also assume that his speed, (accelerating at constant acceleration) and that the rest acceleration is showboating did not slow him at the end. very Irigh early (a) draw plots of his displacement, velocity, & acceleration as a function of time. acceleration is negative (b) What was his acceleration early in the race? (give SI units, and as fraction of g) before end "showboating" (c) What was his velocity as he crossed the finish line? (give SI units, and in mph) Endome Seart 10