Angle between magnetic field B and velocity of charge

1. The problem statement, all variables and given/known data

Find magnitude and direction of F of a charge moving through a magnetic field.

velocity: 5 m/s
charge: 2 C
B: 3 T (pointing out of the page when drawn)

2. Relevant equations

(vector)F=qv x B
(magnitude)F=qvBsinθ

3. The attempt at a solution

I know to use the equation for magnitude but I’m confused as to what the angle would be between v and B. Since the magnetic field is pointing out of the page, would the angle be 90°, making sin(90)=1?

Also, don’t know what direction that would be. Since I don’t know the direction of B, I’m not sure how to use the right hand rule to figure this out.
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

http://ift.tt/1eKnvWh

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