ch08-p105 - 105. (a) With P = 1.5 MW = 1.5 106 W (assumed...

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m Pt vv fi = = × 2 2 15 10 360 25 10 21 10 22 6 6 bg ch b g b g . . Ws ms kg. (b) With t arbitrary, we use Pt m v v i =− 1 2 to solve for the speed v = v ( t ) as a function of time and obtain vt v Pt m t t i b g b g b g =+ = + × × 2 2 6 6 2 10 21 51 0 100 15 . . . in SI units ( v in m/s and t in s). (c) The force F ( t ) as a function of time is Ft P t b g b g == × + 15 10 100 15 6 . . in SI units ( F in N and t in s). (d) The distance d the train moved is given by 360 1/2 3/2 360 3 00 0 34 3 ( ) 100 100 6.7 10 m.
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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