A train moves due east with a speed of

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Kinematics · Kinematics

Problem

A train moves due east with a speed of 15 m s−115\,\text{m}\,\text{s}^{-1}. To a passenger inside, the rain appears to fall exactly vertically downward. What is the horizontal component of the rain’s velocity with respect to the ground? (a) 15 m s−115\,\text{m}\,\text{s}^{-1} east (b) 0 m s−10\,\text{m}\,\text{s}^{-1} (c) 15 m s−115\,\text{m}\,\text{s}^{-1} west (d) 30 m s−130\,\text{m}\,\text{s}^{-1} west

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