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nvictor
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Homework Statement
a beam of particles with velocity v^vector enters a region that has a uniform magnetic field B^vector in the +x direction.
show that when the x component of the displacement of one of the particles is 2 * Pi * (m / qB) * vcos(theta), where theta is the angle between v^vector and B^vector, the velocity of the particle is in the same direction as it was when the particle entered the field
Homework Equations
the period of circular motion is T = 2 * Pi * m / q * B
The Attempt at a Solution
if I divide v = d * t = x * t
if I choose t to be T then I find v = v cos(theta).
then thing is, I don't really undertstand the question, and I want to know how to proceed from there.