Recent content by physicsmarkb

Wow I'm so dumb. I can't believe I wasn't paying attention to W and F.

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...

Does anyone know why I have have to solve it like this?

[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...