Show by expanding [1 − (υ/c) 2 ] 1/2 in powers of (υ/c) 2 that the kinetic energy can be written as Does non-relativistic formula m0υ 2 /2 overestimate or underestimate the kinetic energy of particle...

Show by expanding [1 − (υ/c) 2 ] 1/2 in powers of (υ/c) 2 that the kinetic energy can be written as

Does non-relativistic formula m0υ 2 /2 overestimate or underestimate the kinetic energy of particle with the rest mass m0 and speed υ?