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Math Help - Use Algebra to solve

  1. #1
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    Use Algebra to solve

    Use Algebra to solve v_2 = v_1 + at for v_1 if v_2 = 245m/s, a= 19m/s squared, and t = 22s

    I just want to be put on the right track... now I seen many examples for this online. I just am primiarily confused because of the units of time and speed.
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  2. #2
    MHF Contributor
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    Re: Use Algebra to solve

    In solving for v_1, you can ignore the units. Units are useful to check that expressions that you are evaluating make physical sense, but they don't contribute to the numerical answer.

    Start by subtracting at from both sides of the equation.
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  3. #3
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    Re: Use Algebra to solve

    Thank you very much. I figured it out and it was right, I made it harder than it should of been.
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