For ex, say you were rolling a ball down a steep ramp (about 85-90 degrees to horizontal, so almost straight). The ramp is say at least 100m long so there's enough time for the ball to build up velocity, etc. Is it possible for any circumstances to happen where the ball would temporarily become airbourne as its rolling? I couldn't reason out any way for this to happen, (I'm not very knowledgeable in concepts/theory though..) Is there a way for this happen? If so, could someone explain / link me to a page that talks about it? Thanks!