Friction is one force causes a ball to roll downhill. The smaller the static friction coefficient, the more liable the ball will be to skidding instead of rolling. Static friction is involved in a ball rolling downhill.
Gravity
A ball rolls down hill because there is no force preventing it from moving. If there was an object in the way, that would be the force that counters the movement/roll.
gavity
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.
Gravity
Gravity
gravity
Wind and rain erosion causes rocks to become dislodged will let it fall or roll to the bottom. Wind and rain erosion do cause rocks to roll to the bottom of a hill but more importantly gravity does. Gravity is the main reason :)
Friction is one force causes a ball to roll downhill. The smaller the static friction coefficient, the more liable the ball will be to skidding instead of rolling. Static friction is involved in a ball rolling downhill.
There must be some sort of force. Either the table is tilted so gravity makes the can roll downhill. Or an invisible force is used: magnetic or air jet.
The amount of erosion by glaciers forming in the Antarctic ice sheet which are forced downhill by gravity, causes rocks and soil to roll into the benthos. Since Antarctica covers 10% of the earth's surface, this erosion is negligible.
The gravitational force is.
Gravity
propensity
A ball rolls down hill because there is no force preventing it from moving. If there was an object in the way, that would be the force that counters the movement/roll.
gavity