The complexities of falling freely

Fuente: arXiv
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Auteurs principaux: Sen, Anindya, Chebolu, Sunil
Format: Preprint
Publié: 2025
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author Sen, Anindya
Chebolu, Sunil
author_facet Sen, Anindya
Chebolu, Sunil
contents Suppose you drop a coin from 10 feet above the ground. How long does it take to reach the ground? This routine exercise is well-known to every AP physics and calculus student: the answer is given by a formula that assumes constant acceleration due to gravity. But what if you ask the same question in the more realistic scenario of non-constant acceleration following an inverse square law? In this article, we explain the analysis of this realistic scenario using freshman-level calculus and examine some implications. As a bonus, we also answer the following intriguing question: Suppose the Earth were to instantaneously collapse to a mathematical point at its center. How long would it take for us surface dwellers to fall to the center?
format Preprint
id arxiv_https___arxiv_org_abs_2503_17889
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The complexities of falling freely
Sen, Anindya
Chebolu, Sunil
History and Overview
Suppose you drop a coin from 10 feet above the ground. How long does it take to reach the ground? This routine exercise is well-known to every AP physics and calculus student: the answer is given by a formula that assumes constant acceleration due to gravity. But what if you ask the same question in the more realistic scenario of non-constant acceleration following an inverse square law? In this article, we explain the analysis of this realistic scenario using freshman-level calculus and examine some implications. As a bonus, we also answer the following intriguing question: Suppose the Earth were to instantaneously collapse to a mathematical point at its center. How long would it take for us surface dwellers to fall to the center?
title The complexities of falling freely
topic History and Overview
url https://arxiv.org/abs/2503.17889