Physics Car Assignment : rubber band car

[gr11physics]

1. i have a physics project where we have to make a car that accelerates the fastest during 3.0 m. it also must be accelerating for the whole 3.0m. I am using a simple rubber band car where the rubber bands are attached to both axels and are wound up. i have to make a bunch of calculations but the only ones i cannot seem to figure out are; the thrust (applied force), normal force, coefficient of friction, force of friction, and the power. how should i go about finding these ?




2. F=ma
P=E/t
E_k=1/2mv²
F_f=coefficient of friction X the normal force





3. can't attempt solution as i don't understand the above

 

[nilesh_pat]

. You need to calculate the mass, acceleration, velocity, and energy of your car. Then you can use these values to calculate the thrust, normal force, coefficient of friction, force of friction, and power.