my winshield wiper is kinda weird, cause when i follow through, the racket goes really LOW. like my racket goes up then the top of my racket just droops down. Is this normal? when i watch pro tennis players do the windshield wiper how come there follow thru is high and now a downward motion?
Power brakes (and anti-lock) are a pretty standard thing these days, yes, but they are not the same. Power brakes is a system which boosts the pressure in the brake system, it's much easier to get a higher amount of pressure in the brake lines. Usually power brakes use vacuum supplied by the engine to assist in braking. Anti-lock braking (ABS) is a system which keeps your wheels from locking up when skidding, or nearing a skid, by momentarily releasing brake presure form the wheel or wheels which are nearing lock up (non-rotation). This is so you are still able to control (steer) the vehicle, when the wheels lock, you can no longer steer the vehicle, which is kinda unsafe.
Most everything made after 1980 has power brakes. This is just an assist system so that you don't have to push as hard on the brake pedal. Anti-lock brakes are computer controlled so that you cannot lock up the brakes. They give you the maximum braking effort for the road conditions. They will help keep you from sliding, spinning, etc. on wet or icy conditions. Please do not think, however, that this means you do not have to brake as soon. They will just not apply enough pressure to lock up the wheels. You will still have to slow down way ahead of time in wet or icy conditions.
power brakes usually are vacuum assisted. on some models, they use a hydro boost system driven off the power steering pump. they help a smaller, weaker person stop a 2 plus ton vehicle safely and quickly. abs brakes is an electronic system driven by a computer that releases (does not apply) brake fluid pressure to each individual wheel to keep it from locking up, and skidding. uses a series of sensors to keep all wheels spinning at the same rpm under braking conditions of all types.
well there pros they can add/remove w/e they want. the top of your raqcuet is suppose to go over ur shoulder.
Basically you make a higher or bigger windshield so it eventually ends up over you arm. So REALLY exaggerate it and you'll be fine :]
