An experiment of relative velocity in a train using a smartphone

Aan Priyanto; Yusmantoro; Mahardika Prasetya Aji

doi:10.1007/978-3-030-94044-7_3

An experiment of relative velocity in a train using a smartphone

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Aan Priyanto, Yusmantoro, Mahardika Prasetya Aji

2022 Smartphones as Mobile Minilabs in Physics: Edited Volume Featuring more than 70 Examples from 10 Years The Physics Teacher-column iPhysicsLabs Book chapter Cited by 0

Abstract

Have you ever been on a moving train? If so, you may observe that various stationary objects outside the train appear to travel backward at different velocities depending on their distance to the train. Theoretically, according to kinematics, all stationary objects outside the train have the same relative velocities to the observer inside the train. This paper provides a simple experiment using a smartphone to explain this phenomenon and formulate the theoretical justification. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022. All rights reseverd.

Affiliations

Department of Physics, Bandung Institute of Technology, Bandung, Indonesia; Department of Physics, Universitas Negeri Semarang, Semarang, Indonesia

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