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orangefruit
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Homework Statement
This is not hw, but practice for my upcoming exam. Any help will be appreciated :)
A charged particle of mass m = 6.7X10-8 kg, moving with constant velocity in the y-direction enters a region containing a constant magnetic field B = 1.6T aligned with the positive z-axis as shown. The particle enters the region at (x,y) = (0.98 m, 0) and leaves the region at (x,y) = 0, 0.98 m a time t = 860.0 μs after it entered the region.
https://www.smartphysics.com/Content/Media/Images/EM/12/h12_bend90.png
What is Fx, the x-component of the force on the particle at a time t1 = 286.7 μs after it entered the region containing the magnetic field.
Homework Equations
F = q(v x B)
F = ma
a = v^2/r
d = vt
d = pi/2 r
The Attempt at a Solution
So far I have found the correct speed that the particle is going. It was 1789.98 m/s. I got that by knowing the distance the particle will travel will be r* pi/2. Radius is simply the distance in either the x or y given. With that distance I know time, thus I used d=vt to solve for v.
Now I am confused by the Fx and Fy components and what I need to do. I'm assuming I need to brush up on mechanics.
I tried solving at first by keeping that velocity the same throughout the problem. So I did F=ma, where a is v^2/r. Can someone lead me to the right way and explain why this will not work? I'm having issues with pinpointing the correct values and what I need to solve in order to find the force at that time. Thanks!
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