1. The problem statement, all variables and given/known data A charged particle of mass m = 6.9E-8 kg, moving with constant velocity in the y-direction enters a region containing a constant magnetic field B = 1.7T aligned with the positive z-axis as shown. The particle enters the region at (x,y) = (0.99 m, 0) and leaves the region at (x,y) = 0, 0.99 m a time t = 402 μs after it entered the region. What is Fx, the x-component of the force on the particle at a time t1 = 134 μs after it entered the region containing the magnetic field. 2. Relevant equations F=QvB d=vt 3. The attempt at a solution Solved for the velocity and got v=3855.7 m/s. Solved for charge and got -1.58E-4 Then using d=vt, I solved for how far along the circular motion path the particle would be at t1, and got 0.516. Then I used θ=s/r=0.52/0.99 to get the angle in radians (0.52) and then converted to degrees and got 29.8° (I used an online converter just to be sure). From there I used F=QvBsin(θ). The answer was wrong, and so I plugged in that answer into the next question asking for Fy and it was wrong also.