When at rest a proton experiences a net electromagnetic force of magnitude 8.0 x 10-13 N pointing in the positive x direction. When the proton moves with a speed of 1.5 x 106 m/s in the positive y direction, the net electromagnetic force on it decreases in magnitude to 7.5 x 10-13 N, is it still pointing in the positive x direction?

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?