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kaspis245
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Homework Statement
A particle with a charge enters an area where it becomes affected by resistance force, which is directly proportional to its velocity. The particle moves 10 cm in that area and stops. If there was a magnetic field in that area the particle with the same initial velocity could move a total displacement of 6 cm. What distance could the particle move if the magnetic field would be two times weaker?
Homework Equations
Laws of motion
The Attempt at a Solution
##F_r## - the resistance force
##F_{rx}## - horizontal resistance force
##F_{ry}## - vertical resistance force
##F_m## - force caused by the magnetic field
##v## - initial speed
The first drawing shows particle moving in an area without magnetic field and the second one with it.
When the particle is moving in an area with magnetic field it is affected by horizontal forces ##F_m##, ##F_{rx}## and one vertical force ##F_{ry}##.
Now, I think that the particle in both diagrams should have the same vertical accelerations, however due to the fact that the particle in magnetic field moves only 6 cm it appears otherwise.Why is that so? Why does the particle in magnetic field has a smaller vertical displacement? What additional forces cause this? I can't see how ##F_m## can affect this since it is only involved in horizontal motion.
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