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)
Gravity keeps you from sliding backwards when you climb a hill. If there is no gravity you will fall of the hill.
Gravity in conjunction with friction.
The tornado keeps going without being affected.
Sliding friction is when two objects slide across from one another. An example is sliding a book across a desk. It is also known as Kinetic friction.Sliding friction is friction caused by an object sliding over another surface.
Static: A cars wheels (while car and wheels are stopped, or while car is moving and wheels are rolling), a doorstop, a rock on a hill (not sliding down) and the force keeping a nail in some wood. Sliding: A cars wheels (during burnouts or when brakes are applied too hard and the car skids), dragging a computer mouse along a table, Ice skaters blades and a drink slid down the bar to you.
There is always gravity that is pulling the ball down. Therefore, the ball will roll until another force is acted upon it.. Like when the hill ends.
If you are sliding down the hill on a sled, you are sledding.
Up the Hill Backwards was created in 1980.
climb
Bunker Hill spelled backwards is llih reknub.
If it is the hill with the mansion on top of it, you climb the rocks.
Mount Evans Hill Climb was created in 1962.
Bouley Bay Hill Climb was created in 1921.
if large hill: cut into the hill so you have a flat surface, this keeps the plants from sliding and helps plant get more water if several small hills: level the ground
"climb" is the verb in that sentence.
Noob
no
You have to teach them Rock Climb, which is a HM(Hidden Move).