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Physics - Extended Experimental Investigation

             The question to be investigated throughout this Extended Experimental Investigation is, whether or not the friction effects the time/stopping distance of a vehicle (in this case, the vehicle being a car). No matter what we are doing, friction is always going to be a part of it – when we walk, when we drive or ride. If there was no friction, we wouldn't be able to drive/ride around and there'd be accidents everywhere. So, in short, Friction is incredibly important to us. There are 2 types of friction, Static and Kinetic. Static Friction is friction which prevents an object from moving when it is still (not moving), so basically you are right now 'static' because you are in one position, you're keeping yourself from moving. Kinetic Friction is friction that slows or stops an object from moving. So when you hit the brakes of your car, there is kinetic energy between the tyres and surface helping it to slow down/stop. In short, Kinetic Friction helps you stop moving but Static Friction "keeps" you from moving. The type of friction being used in this investigation is Kinetic, because we want to see which surface helps so down the car the fastest. Surface plays a key role in road accidents, as that's what the tires depend on to slow down – Wet surface, longer stopping distance; non-wet surface, faster stopping distance. The scientific theories that show background information on the relation of friction is stopping distance would be an example of a calculation. .
             Breaking Distance + Reaction Distance + Stopping Distance. The secondary data I have is, how to find the reaction distance, you must calculate the speed x reaction time = reaction distance. The reaction time, is the time it takes between when you see something and then doing something. The experiment follows this outline - at the end of the ramp, there will a surface, and the surface will be each time. The car will go down on a steady ramp and then it will be connected to a different surfaces which will predict the stopping time/distance.

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