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Jan
13
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Dec
18
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Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
Hmm. I think I get it.
Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
Yes, I understood that, but I'm just wondering how you can know the distribution of these on the front vs back wheel during braking?
Dec
15
accepted What causes the back of a bike to lift when the front brake is applied?
Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
Thanks for your patience. Just wanted to add that the independent variable will be the position of the center of mass (towards front or back) and the dependent variable will be the angle it lifts to. Do you have any comments or criticisms? I'd prefer to deal with them sooner rather than later! Thanks again!
Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
Also, I'm planning to conduct an experiment to illustrate how varying center of mass affects the extent that the wheel lifts. Do you think it would work to have a scale model of a bike (same ratio of dimensions, and same location of center of mass) on four wheels have its front wheels strike a barrier? I conducted a proof of concept with a toy car with a pencil in front, while in the real thing it would have wheels sticking out that would stop as they hit the barrier: cl.ly/Ldpg Will this yield similar results to if it was conducted with locking front wheels?
Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
Ah, yes! That makes a lot of sense! But hang on, how can you know what these values are? Is it hypothetical, or is there a way to calculate the reaction force of the ground on the two wheels?
Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
This makes a lot of sense!
Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
That's a great simulation. However, I'm having some trouble understanding what causes it to flip at -0.55g and not at -0.54g. What is the difference between these two points? You also mention that the anglar momentum has to have a non-zero value. How can I calculate this angular momentum? I'm sorry for asking, I just feel I'm about to understand all of this! :)
Dec
15
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Dec
15
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Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
I figure I'll have to make my model have a slope when it collides for it to work properly then.
Dec
15
comment What causes the back of a bike to lift when the front brake is applied?
That's an awesome answer, and it makes so much sense.
Dec
13
awarded  Student
Dec
13
asked What causes the back of a bike to lift when the front brake is applied?