If I roll a marble down a ramp and of the edge of a bench or something why does .... (1 Viewer)

[Shoom]

Why does the heavy marble travel further then the lighter one?

Basically got a ramp marble rolls down then lands on some straight surface then drops of a certain height.

 

[lolokay]

Re: If I roll a marble down a ramp and of the edge of a bench or something why does .

do they have the same radius?

 

[Will Shakespear]

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

 

[lolokay]

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

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 =/)

 

[Will Shakespear]

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 =/)

nope, it really is independent of radius and mass

 

[lolokay]

Re: If I roll a marble down a ramp and of the edge of a bench or something why does .

I'm pretty sure he's talking about the distance it rolls once it has landed.

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

nope, it really is independent of radius and mass

oh wait yeah =/
i was thinking something completely different. i r retard

so it would be some kind of friction thing then?

 

[lolokay]

Re: If I roll a marble down a ramp and of the edge of a bench or something why does .

...?

 

[darkchild69]

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