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    A car accelerates uniformly from rest at a speed of 100km/h in 5.8 secs.


    (a) Calculate the magnitude of the acceleration of the car in m/s.



    Thanks for your time
    From John Wood
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    a=?ms-2
    u=0ms-1
    v=100kmh-1=100000mh-1=1666.67ms-1
    t=5.8s

    a=(v-u)/t
    =(1666.67-0)/5.8
    =1666.67/5.8
    =287.3568966
    =287.36ms-2 (to 2dp)
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    I really dont know how you got that answer, why did u divide 100000 by 60?
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    (Original post by Neo1)
    I really dont know how you got that answer, why did u divide 100000 by 60?
    you shoudnt divide it by 60 but by (60*60) = 3600
    this is because there are 3600 seconds in every hour
 
 
 

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