Why Does a Bicycle Wheel's Angular Momentum Point West When Traveling North?

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edanzig
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A bicycle is traveling North. The direction of the angular momentum vector of it's front wheel is?

I chose "North." The answer is West. Why?
thanks
 
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Look up right hand rule for vector products.
 
The direction is given by the right hand rule.

[itex]\hat{L}= \hat{r} \times m \hat{v}[/itex]
 
My mistake. I know nothing of this topic, I should have looked before asking...