motion investigation hypothesis

http://www.physicsclassroom.com/class/newtlaws/Lesson-3/Free-Fall-and-Air-Resistance

http://www.physicsclassroom.com/class/newtlaws/Lesson-3/Free-Fall-and-Air-Resistance

http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/forces/forcesvelocityrev1.shtml

http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_gateway/forces/fallingrev3.shtml

Hypothesis:

since in the expirement we will be changing the mass of the car the car will go faster  because the more mass the object has the harder gravaty pulls it but also their is the air risistance working on it but the object does not have a big surface area Like when you drop a feather and a coin since the feather has less mass the it takes less time for the air risistance to make the feather fall slower and the coin has more mass so it takes longer for the coin to fall slower with the air risistance and it also needs to be stronger so if the object has more mass like adding more mass to the car it will go faster because the air risisstance will take longer to affect the object.