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22 August, 22:18

A car accelerates from rest at - 3.00 m/s2. a. What is the velocity at the end of 5.0 s? b. What is the displacement after 5.0 s?

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  1. 22 August, 22:36
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    According to motion 1st equation

    vf=vi+at

    =0+-3*5

    =-15m/s

    ...

    according to motion 2nd equation

    d=vit+1/2at^2

    =0+1/2*-3*5^2

    =-37.5m
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