Assertion: coaster's track | /r/CapableOf | point downslope
Facets:
Source sentences:
text: The coaster at the top of the hill has all potential energy (PE) and that PE turns into KE thru the next mile of track and the rise and run and curves and loops make no difference as long as the track is pointing downslope and the PE of the coaster is giving up it's height and converting that to forward KE force.