So with K final, all you have is mass and velocity. With W = Fx, you have force and distance. Why do you divide mass and velocity by distance?
Edit: I just realized that you divide because you're trying to solve for F.
What I still don't understand is that why you have all the information for K...
[Solved] Quick Question - Explain Work Energy Concept
Homework Statement
Use the work - kinetic energy theorem to find the force required to accelerate an electron (m = 9.11 x 10^-31 kg) from rest to a speed of 1.50 x 10^7 m/s in a distance of .0125 m.
Homework Equations
W = Fx...