An express train is running behind a goods train on the same line and in the same direction, their velocities being u1 a
Posted: Wed Jul 13, 2022 8:09 pm
a) (u1 – u2)2 = 2x(f1 + f2)
b) (u1 + u2)2 = 2x(f1 – f2)
c) (u1 – u2)2 = 2x(f1 – f2)
d) (u1 + u2)2 = 2x(f1 + f2)
b) (u1 + u2)2 = 2x(f1 – f2)
c) (u1 – u2)2 = 2x(f1 – f2)
d) (u1 + u2)2 = 2x(f1 + f2)