247 W
on a hill
Well, based on my understanding, nether, because gravity pulls all objects with the same strength.
31.30
there is a type of device on the train of the rollercoaster that is known as the "chain dog". the "chain dog" grabs the hill so it doesn't roll backwards, but it still allows the train to go upwards by the pulling motion of the chain (note: the bolded "chain" is not the chain dog, the chain dog holds while the regular chain pulls)
They use a ski-lift. The ski-lift pulls them up-hill - against the force of gravity until they reach the top of the run. They then ski back down the slope.
A ski lift is pulled to the top of a hill by a power driven conveyor. Skiers usually sit on a seat which is pulled up the hill on that conveyor by a motor. Without them skiing would not be so easy.
The duration of Top of the Hill is 3600.0 seconds.
The duration of The Folks on the Hill is 900.0 seconds.
The duration of Laurie Hill is 1800.0 seconds.
The duration of Grange Hill is 1500.0 seconds.
The duration of King of the Hill is 1320.0 seconds.
The duration of Redemption Hill is 3600.0 seconds.
The duration of Kevin Hill is 2880.0 seconds.
The duration of Mission Hill is 1380.0 seconds.
down the hill. the force of gravity pulls you down.
A hill always pulls up on the mass
The duration of Baldwin Hills - TV series - is -1320.0 seconds.