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A bicyclist is finishing his repair of a flat tire when a friend rides by at...

A bicyclist is finishing his repair of a flat tire when a friend rides by at 3.4 m/s. Two seconds later, the bicyclist hops on his bike and accelerates at 2.8 m/s2 until he catches his friend.

I have gotten to 0 = 1.4t^2 - 3.4t - 6.8 and used the quadratic equation, but it gives me the incorrect answer.

the correct answer is 3.73 i have answered my own question

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