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A car is slowing down at a rate of 20 km/h/s. How far does it travel if its original velocity is 50 km/h and its final velocity is 5.0 m/s?

  • Physic -

    Change km to m, h to sec

    20km/h/s= 20000/3600 m/s^2
    50km/h= 50000/3600 m/s

    Vf^2=Vi^2+2ad where a= -20/3.6 m/s^2
    solve for d.

  • Physic -

    thank you

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