Question 908549
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Your velocity equation is incorrect.  Should be either *[tex \LARGE v\ =\ at\ +\ v_o] or *[tex \LARGE v\ -\ v_o\ =\ at].


Substituting values you get:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4a\ +\ v_o\ =\ 28]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 7a\ +\ v_o\ =\ 43]


Solve as you would any other 2X2 system of linear equations.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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