Why is it unwise to suddenly apply the brakes of a car on a wet or icy pavement?
Suddenly applying the brakes on a wet or icy road could cause the wheels to lock. With the wheels locked up it takes longer to stop. Also, locked wheels could lead to a loss of control of the vehicle.
If your vehicle has abs brakes, just apply the brakes hard and steer away from danger. If the vehicle does not have abs brakes, try to apply the brakes without locking up the wheels and going into a skid then steer away from danger. If you lock up the brakes and go into a skid you will lose control of your steering.
If while riding a motorcycle on highway 90 at 20 ms a car stops suddenly in front of you. You apply the brakes and come to a stop in 3.5 sec. Assume time zero is the instant you first apply the brakes?
It was recommended to me to apply the brakes while driving through a puddle because having the shoes or pads pressing against the drums or disc will help keep water out. Is this True?
No, that is not true. Water is going to get on the rotor and on the pads no matter what you do. This water will quickly evaporate once you apply the brakes. Even if you do not apply the brakes centrifugal force will remove the water as you drive. Once you apply the brakes the heat created will remove the water very quickly. You may experience a slight loss of good braking the first time…
your back brakes are supposed to apply before your front brakes, they do this so your car does not take a nose dive every time you apply the brakes. but if it is very noticeable i would check the adjustment of your rear brakes (if you have a disc/drum setup) or i would check your proportioning valve if they are locking up