Train A, at a station, starts from rest and moves along a straight track with uniform acceleration a. After time T, a second train B passes the same station, on a parallel track, with constant speed V. See
Figure IIA.
Answer all the questions in terms of a, 7 and V. ONLY.

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?