1. The problem statement, all variables and given/known data In order to stop a car in shortest distance on a horizontal road, one should, (a) Apply brakes very hard so that the wheels stop rotating (b) Apply the brakes hard enough to just prevent slipping (c) Pump the brakes (press and release) (d) Shut the engine off and not apply brakes 2. Relevant equations NIL 3. The attempt at a solution I think the solution might be (a) because after the wheels stop rotating altogether, friction would stop the car entirely. But I might as well be wrong.