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**1. Homework Statement**

at time t1, an electron is sent along the positive direction of an x axis, through both an electric field E and a magnetic field B, with E directed parallel to the y axis. Figure 28-34 gives the y component Fnet, y of the net force of the electron due to the two fields, as a function of the electron's speed v at time t1. the x and z components of the net force are zero at t1. Assuming Bx=0, find the magnitude E and B in unit-vector notion.

the graph has the y axis set as the net force in the y direction and the x axis as the velocity of the electron. the y axis goes from -2 through 2 and the x axis goes from 0 to 100. the x axis is zero at -2 on the y axis, and 100 at 2 on the y axis. the graph is a straight line through those two points.

**2. Homework Equations**

im not really sure

**3. The Attempt at a Solution**

to be honest i have no idea where to start on this one, any help would be appreciated.