# Physics Kinematics Equation Must Be Solved W/ Algebra

• August 9th 2010, 06:53 PM
jessegarwood
Physics Kinematics Equation Must Be Solved W/ Algebra
So I have the formula and values substituted in correctly - but now the simple algebra part is killing me.
x = vt + 1/2at^2
.06=(2*10^3)t + 1/2(4*10^7)t^2

What is t?
• August 9th 2010, 07:09 PM
eumyang
$.06 = (2*10^3)t + 1/2(4*10^7)t^2$
$.06 = 2000t + 20000000t^2$

Set equal to 0 and rearrange:
$20000000t^2 + 2000t - 0.06 = 0$

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