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Homework Statement
What net force would be necessary to stop an automobile of mass 1000kg traveling initially at a speed of 15m/s in a distance equal to the diameter of a dime, which is 1.8cm ?
Homework Equations
The Attempt at a Solution
The force required to stop the car is given by F = dp/dt.
Change in momentum = mv - mv0
As far as I can see, it's not possible for me to determine a time in which this change in momentum takes place. I have been staring at it for ages and not making any head way.
Thanks for any help you can give.