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poptaguser

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## Homework Statement

A runner wishes to complete a 1600m races in 5.0 min. She accelerates to racing velocity in the first 15s of the race then travels at a constant velocity for the next 4.0min. At this point she still has 250m to go. What must her acceleration be over the remaining distance in order for her to finish the race next time?

## Homework Equations

The 5 BIG Kinematic Equations

## The Attempt at a Solution

Δdτ = 1600m

ΔT = 300 seconds