We can use astoterf on hill to slow the marble
You can tilt the surface it is rolling on, upward.
You can apply moving air against it, by blowing.
A real life example of kinetic energy is something........ Sike!!!!!! A ball rolling down a hill, A person typing on a keyboard.
down the hill. the force of gravity pulls you down.
kinetic energy
The acceleration of a tennis ball rolling down an incline depends with two factors. The force that is applied to the tennis ball and the mass of the tennis ball will determine its acceleration.
so your car doesnt roll down the hill
Normally, a ball with more mass would roll faster down a hill, but, it will go slower when kicked or rolled.
Support the track more, a moving track can severely slow down the speed of the ball. Try lowering the hill too of course, and making the first drop taller.
Radon gas leak
There are two nouns in this sentence, ball and hill.
If a ball slides down a frictionless hill there will be no rotation of the ball. But with friction the ball will both translate and rotate down the hill.
Marble Hill House was created in 1729.
Yes, sometimes and no sometimes. In the case of rotating objects the more import value is moment of inertia. An object with a higher moment of inertia will accelerate slower (roll slower comparatively for any given time after release) down an inclined plane. In the case where the marbles are of equal diameter and uniform (although different if one is to have more mass) density the heavier marble will roll slower down a slope. For those interested in a short description followed by plenty of calculus. http://en.wikipedia.org/wiki/Moment_of_inertia
If you roll a ball up a hill it undergoes negative upward and positive downward acceleration.
It will go slower up hill and faster down hill.
Yes.
If nobody pushed it, then it had to be either gravity or the wind.
A ball rolling down a hill.