# Answer on Algebra Question for Na

Question #1256

s=ut+at²/2. make t the subject of the formula

Expert's answer

You have to solve the quadratic equation respect to t:

at

D=u

t

t

at

^{2}/2+ut-s=0;D=u

^{2}+2as;t

_{1}= 2(-u +√(u^{2}+2as))/a.t

_{2}= 2(-u -√(u^{2}+2as))/a.Need a fast expert's response?

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