true
you can do that by adding lubricant (such as oil or grease) to reduce the friction between the surface rubbing against the ramp. This should make anything running on it slide easily.
speed
street-sport ramp (an item for street sports)
A: It is a voltage that is linearly increasing or decreasing at any rate.
The Ramp is the shop or amenity and food and drink service business, in San Francisco, California