What is the speed of an electron (me=0.511 MeV/c2) with a momentum p=5 MeV/c.
Starting with momentum:
Then solving for u:
The Attempt at a Solution
I've never dealt with these units before (MeV/c2 and MeV/c) so I am not sure what to do with them. Can one use those values to solve for speed? I solved it (getting 0.993c) but I converted everything to kg and kg*m/s and the solved from there.
Is there an easy way to convert (if I have to)? I ended up using a calculator online to find values. But I'd rather understand them better.