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I think it's to do with friction and the material you have on your ramp.
first it will have static friction because the object isn't moving.once it rolls it will have rolling friction.
Either decrease the slope of the ramp, increase the friction on the axels of the car, or make the tires stick to the ramp in some fashion.
The cart stays where it is and doesn't move.
Yes. Roughness is a general term that refers to more friction, and friction will slow motion.
Yes Friction between the wheels and the ramp and also friction between the body of the car and the air (unless the car and ramp are in a perfect vacuum) There will be additional friction in the bearings or ball race of the wheel / axle too
It depends on the ramp surfaces because some ramp surfaces have less friction than others and some have more friction than others.
me
The same amount
A ramp. Items you can not lift up, you can roll up a ramp. People can not lift someone in a wheel chair, but they can roll him up a ramp or an inclined plain.
I think it's to do with friction and the material you have on your ramp.
No, the ideal is without friction.
at rest it is static friction while on wheels it is rolling friction
first it will have static friction because the object isn't moving.once it rolls it will have rolling friction.
Reduce the friction of it and the ramp, for example, mounting it on wheels.
lift
Either decrease the slope of the ramp, increase the friction on the axels of the car, or make the tires stick to the ramp in some fashion.