33_Physics ProblemsTechnical Physics

33_Physics ProblemsTechnical Physics - 34 P2.32 Motion in...

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34 Motion in One Dimension P2.32 (a) The time it takes the truck to reach 20 0 . m s is found from vv a t fi =+ . Solving for t yields t a = = = 20 0 0 200 10 0 . . . ms s 2 . The total time is thus 100 500 350 .. . . s s s ++= . (b) The average velocity is the total distance traveled divided by the total time taken. The distance traveled during the first 10.0 s is xv t 1 02 0 0 2 10 0 100 == + F H G I K J () = . . m . With a being 0 for this interval, the distance traveled during the next 20.0 s is t a t i 2 2 1 2 20 0 20 0 0 400 =+ = ( ) += m . The distance traveled in the last 5.00 s is t 3 20 0 0 2 + F H G I K J = . m . The total distance xx x x =++= + += 123 100 400 50 550 m, and the average velocity is
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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