Physics
posted by Gerald .
An electron is a subatomic particle (m = 9.11 *10^31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.31 * 10^5 m/s to a final velocity of +2.21 * 10^6 m/s while traveling a distance of 0.040 m. The electron's acceleration is due to two electric forces parallel to the x axis: 1 = +6.75 * 10^17 N, and 2, which points in the x direction. Find the magnitudes of the net force acting on the electron and the electric force 2.
I have been trying to do this problem for close to an hour and still cannot make any headway on it. Can someone please show me the steps to solving this problem? Thank you so much!

Physics 
Kosy
First of all,calculate acceleration.then use the acceleration the net force.then subtract the net force from F1.

Physics 
Anonymous
A sailboat race course consists of four legs, defined by the displacement vectors , , , and , as the drawing indicates. The magnitudes of the first three vectors are A = 3.60 km, B = 5.30 km, and C = 4.70 km.
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