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## Homework Statement

A police car at rest is passed by a speeding car moving east at 20m/s. The police officer immediately starts to accelerate to the east at 5.0m/s. How long will it take the police officer to catch up with the offending car

## Homework Equations

## The Attempt at a Solution

V

_{Icop}=0

V

_{Fcop}=?

A

_{cop}=5.0m/s

^{2}

V

_{Ioffender}=20m/s

I dont really know which equation to start with because I feel as if I dont have enough variables. I want to solve for the final velocity of the cop then use that to get the time by making another equation where the final of the cop, becomes the initial, and the initial of the offender is the final.... ahh im so confused.