Physics

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a bike passes a lamp post at the crest of hill at 4.5 m/s. she accelerates down the hill at the rate of 0.04 m/s squared for 12 seconds. how far does she move down the hill during this time ?

  • Physics -

    s=v₀t+at²/2,
    v₀= 4.5 m/s,
    a= 0.04 m/s²,
    t= 12s

  • Physics -

    d=V(initial)*time+1/2at^2
    d=(4.5)(12)=1/2(0.40)(12)
    d=54+1/2(4.8)
    d=54+2.4
    d=56.4m

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