---
title: "A person sitting in an enclosed train car, moving at constant velocity, throws a ball straight up into the air in her reference frame."
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url: "https://nerd-notes.com/ubq/98205/"
date_modified: "2025-11-03T08:33:20+00:00"
---

# A person sitting in an enclosed train car, moving at constant velocity, throws a ball straight up into the air in her reference frame.

A person sitting in an enclosed train car, moving at constant velocity, throws a ball straight up into the air in her reference frame.

**Part a)** Where does the ball land? *(3 points)*

**Part b)** What is your answer if the car accelerates? *(3 points)*

**Part c)** What is your answer if the car decelerates? *(3 points)*

**Part d)** What is your answer if the car rounds a curve? *(3 points)*

**Part e)** What is your answer if the car moves with constant velocity but is open to the air? *(3 points)*


*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/98205/*