Explain, in one or two sentences, why a person who walks forward at relative to the…

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Kinematics · Kinematics

Problem

Explain, in one or two sentences, why a person who walks forward at

1.2\,\text{m/s}

relative to the floor of a train appears to move faster than

1.2\,\text{m/s}

to an observer standing on the station platform.