Major help. A .110 nm photon collides with a stationary electron. After the collision, the electron moves forward the the photon recoils backwards. Find the momentum and Kinetic Energy of the electron.

Question

Major help.  A .110 nm photon collides with a stationary electron. After the collision, the electron moves forward the the photon recoils backwards. Find the momentum and Kinetic Energy of the electron.

lilsis76 · Answer

I know momentum will be $$:  p=\frac{ h }{ \lambda }$$

lilsis76 · Answer

@nincompoop do you think you could help me with this?

wmj259 · Answer

Basically this is a type of elastic collision.

lilsis76 · Answer

Okay @wmj259 I figured it out. I kept adding the 1 instead of subtracting it.