it depends...a ramp with transitions at top and bottom can be steeper than one without, because severe change in slope can cause the vehicle to bottom out.
The maximun slope of an ADA ramp is 8.3% or 12:1.
In order to comply with the American Disabilities Act (ADA), the maximum ramp gradient is 1:20
Either decrease the slope of the ramp, increase the friction on the axels of the car, or make the tires stick to the ramp in some fashion.
Changing the slope of the ramp will affect the speed of the vehicle going down it.
According to Americans with Disabilities Act guidelines, a handicap ramp shall be at least 36 inches wide. The maximum slope is 1:12 (about 4.77 degrees). The maximum rise in a single run is 30 inches.
check this site. you can find usefull information.
yes
Air resistance against the car as it travels and the friction of the wheels against the ground slows it down and so reduces the toy car's potential travelling distance The weight of the car\on the car, the slope of the ramp and the material the car lands on or on the ramp
The answer depends on what causes the difficulty: the steepness or the distance which you have to run.
- The slope and length of the ramp. - The rolling friction between the tires and the ramp/ground. - The air resistance (which is dependent on the velocity and geometrical shape of the car). - The direction and speed of the wind. - The smoothness of the ground (a rugged surface will slow the car down).
in our experiment the higher angle 60 degrees slow the car down because of the severity of impact where slope/ramp touch the floor. the middle angle 30 degrees had best result with smoothest transition.
a ramp