- #1

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## Homework Statement

Rearrange d=vit + 1/2 at^2 for t.

## The Attempt at a Solution

t = \frac{-v \pm \sqrt{v^2+4 \left( \frac{1}{2} a\right)d}}{2 \left( \frac{1}{2} a \right)}

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- Thread starter einsteinette
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- #1

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Rearrange d=vit + 1/2 at^2 for t.

t = \frac{-v \pm \sqrt{v^2+4 \left( \frac{1}{2} a\right)d}}{2 \left( \frac{1}{2} a \right)}

- #2

Delphi51

Homework Helper

- 3,407

- 11

t = (-Vi + sqrt(x))/a or (-Vi - sqrt(x))/a

where x = Vi^2 + 2*a*d

I've never seen that formula used - it is just easier to use two of the others to do the job.

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