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26 August, 23:44

A car accelerated at a rate of 3ft/s^2 for 2 seconds. at the end of this time period the velocity of the car was 55ft/s what was the car's velocity before it started to accelerate?

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  1. 26 August, 23:46
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    the answer is 49ft/s

    Explanation:

    if you look for the equations of uniformly accelerated motion you find the following

    Vo=Vf-AT

    Where

    Vo=initial speed

    Vf=final speed

    A=aceleration

    T=time

    you replace and it's all

    Vo=55-2x3

    Vo=49ft/s
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