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A car start from rest an is then accelerated uniformly to a velocity of 100.8km/h.A brake is applied in 4sec.find

1.its acceleration
2.its retardation

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1 answer

  1. v = at
    a = (100.8 km/hr)/(4s) = 25.2 (km/hr)/s

    no idea what #2 is

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