Not sure what im doing wrong on this, I've been using the equation
%2Bv_%7Bi%7Dt%20%2B%5Cfrac%7Bat%5E%7B2%7D%20%7D%7B2%7D" id="TexFormula1" title="y_{f} =y_{i} +v_{i}t +\frac{at^{2} }{2}" alt="y_{f} =y_{i} +v_{i}t +\frac{at^{2} }{2}" align="absmiddle" class="latex-formula"> and then using the quadratic formula to find the time, but i keep on getting 5.06s even though the answer is 3.64s, could someone tell me what I'm doing wrong please and show how to do it correctly? thanks in advance
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