Direction of Momentum Problem

1. The problem statement, all variables and given/known data
A) You travel north down a road in a car at constant velocity. In which direction (N, S, E, W, up, down) does the angular momentum vector point for one of the tires.

B) Same situation. If you slam on the brakes in which direction does the angular acceleration vector point for one of the tires. (N, S, E, W, up, down)

2. Relevant equations

L = r x p

3. The attempt at a solution

For A, I think it’s East because of the right hand rule. My fingers would be curling forward and my thumb would be pointing to the Left.

For B, I’m not sure. I guess it would be West just because acceleration would be negative and in the opposite direction of A.

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