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Physics, 17.10.2021 14:00 ethanyayger

Not sure what im doing wrong on this, I've been using the equation y_{f} =y_{i} +v_{i}t +\frac{at^{2} }{2} 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


Not sure what im doing wrong on this, I've been using the equation  and then using the quadratic fo

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