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## Homework Statement

A 1.54 m wide, 1.48 m high, 1600 kg car hits a very slick patch of ice while going 19.0 m/s. Air resistance is not negligible.

If friction is neglected, how long will it take until the car's speed drops to 12.0 m/s?

To 11.0 m/s?

## Homework Equations

Kinematics equations, F=ma

**3. solution**

I have no idea how to solve this :-(

If you solve it, please explain WHY?

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