Physics,chemistry,maths

On turning a corner a car drIver driving at 36 km per hour find a child on the road 55 metre ahead.he immediately applies brakes so as stop within 5 metre. Calculate the ation produced and the time taken by the car to stop.

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  1. vf^2=vi^2+2ad

    solve for a. Now I am not certain if by "ation" you mean a, or the force braking, if force, then force= a/masscar

    time:
    timetostop= distance/avgveloctiy
    = distance/(vf/2)

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    bobpursley

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