PLEASE HELP How long will it take until the car's speed drops to 12.0 m/s?

  • Thread starter DrSmiles
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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?
 
Last edited:

Answers and Replies

  • #2
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Draw a free body diagram. What are the forces acting on the car?
 

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