physics

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if the greatest acceleration force which may be be applied to a vehicle is numerically equal to its weight, find a the least distance and b the least time, in which the vehicle travelling on a horizontal road can be brought to rest from an initial velocity of 25 m s-1

  • physics -

    a=Force/mass= mg/m=g

    vf^2=vi^2+2ad
    0=25^2+2*9.8 d solve for d.

    time? Vf=vi-9.8 t solve for t.

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