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If I roll a marble down a ramp and of the edge of a bench or something why does .... (1 Viewer)
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Will Shakespear
mumbo magic
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Re: If I roll a marble down a ramp and of the edge of a bench or something why does .
their velocity leaving the ramp should be independent of both mass and radius
their velocity leaving the ramp should be independent of both mass and radius
Re: If I roll a marble down a ramp and of the edge of a bench or something why does .
he's just rolling the marbles off the ramp and then they fall through the air, right?
in which case, the distance is dependent on velocity, and a larger radius should mean a smaller velocity
(but then, you would assume the heavier marble would have the larger radius =/)
he's just rolling the marbles off the ramp and then they fall through the air, right?
in which case, the distance is dependent on velocity, and a larger radius should mean a smaller velocity
(but then, you would assume the heavier marble would have the larger radius =/)
Last edited:
Will Shakespear
mumbo magic
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Re: If I roll a marble down a ramp and of the edge of a bench or something why does .
nope, it really is independent of radius and mass
Re: If I roll a marble down a ramp and of the edge of a bench or something why does .
i was thinking something completely different. i r retard
so it would be some kind of friction thing then?
in that case it would probably some kind of friction issue? maybe friction for a rolling body along this surface is such that it has less effect on the heavier marble. i dunno
oh wait yeah =/
i was thinking something completely different. i r retard
so it would be some kind of friction thing then?
Last edited:
darkchild69
Nanotechnologist
Re: If I roll a marble down a ramp and of the edge of a bench or something why does .
This could be attributed to a few things.
The two marbles surely do not have the exact same surface, the smaller marble may have a slightly rougher surface, resulting in more frictional contact between the two surfaces
Obviously the heavier marble has a larger surface area, this would also mean that there is more air resistance upwards, meaning a lower acceleration downwards due to the net force acting on the marble.
If the larger marble also has a greater mass per unit area, it could punch through the air horizontally much more efficiently also.
The two marbles may have different drag co-efficients, a rough sphere has a drag co-efficient around 4 times that of a smooth sphere
Quite a few different things to think about
This could be attributed to a few things.
The two marbles surely do not have the exact same surface, the smaller marble may have a slightly rougher surface, resulting in more frictional contact between the two surfaces
Obviously the heavier marble has a larger surface area, this would also mean that there is more air resistance upwards, meaning a lower acceleration downwards due to the net force acting on the marble.
If the larger marble also has a greater mass per unit area, it could punch through the air horizontally much more efficiently also.
The two marbles may have different drag co-efficients, a rough sphere has a drag co-efficient around 4 times that of a smooth sphere
Quite a few different things to think about