- #1

physicsmarkb

- 4

- 0

**[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 cos(theta), K = 1/2 mv^2

## The Attempt at a Solution

I know that I would set Fx cos(theta) = 1/2 mv^2 and then solve for F but I don't understand why I would do this.

Last edited: