in an emergency stop on a level dry concrete road the magnitude of the friction force when sliding is approx 80% of the weight of the vehicle. What stopping distance is required for a vehicle travelling at 88km/h (24.444 m.s)?
Assume that all the wheels lock when the brakes are applied
Use 9.8 m/s2 for gravitational acceleration
SumF = ma
The Attempt at a Solution
I have tried a number of combinations using the above equations - I can't figure this out.