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## Homework Statement

When you are 20 m away from a stopped hummer it begins accelerating away from you at 3 m/s/s . With what constant velocity should you run to catch the hummer?

## Homework Equations

Vf ^2 = Vi ^2 + 2ad

d = Vi * t + 0.5at^2

Vf = Vi + at

## The Attempt at a Solution

I really don't know how to approach the problem. Assuming that they are asking for the minimum velocity...

Distance for runner:

Velocity (time) - 20 meters

Distance for hummer:

= 3/2 (t^2)

To find the initial velocity you would set the two equations equal to each other, but ther is also the time variable?!

Can someone please guide me. Thank you...