Mass of particle = 5GeV/C^2
Momentum of particle = 5GeV/c
Find total energy of particle and speed of particle.
The Attempt at a Solution
When I try so solve for speed, I realize λ is a function of u, so get this:
(u*(√(1-(u/c)^2))^-1) = p/m = c, but can't solve for u from that.
How would I go about approaching this problem?