---
title: "A stone is launched horizontally from the top of a \\(45\\text{ m}\\) tall building and lands on level ground at a horizontal distance of \\(60\\text{ m}\\) from the base of the building. Neglecting air resistance and using \\(g = 10\\text{ m/s}^2\\), what is the initial horizontal launch speed of the stone?"
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url: "https://nerd-notes.com/ubq/122037/"
date_modified: "2026-09-27T10:32:33+00:00"
---

# A stone is launched horizontally from the top of a \(45\text{ m}\) tall building and lands on level ground at a horizontal distance of \(60\text{ m}\) from the base of the building. Neglecting air resistance and using \(g = 10\text{ m/s}^2\), what is the initial horizontal launch speed of the stone?

A stone is launched horizontally from the top of a \(45\text{ m}\) tall building and lands on level ground at a horizontal distance of \(60\text{ m}\) from the base of the building. Neglecting air resistance and using \(g = 10\text{ m/s}^2\), what is the initial horizontal launch speed of the stone?

![A vertical rectangle representing a building of height labeled \(45\text{ m}\) stands on a flat horizontal ground line. At the top right corner of the building, a small solid circle representing a stone is shown with a horizontal rightward arrow labeled \(v_0\). A dashed downward-curving parabolic arc extends from the stone to the ground. A horizontal dimension line between the base of the building and the landing point on the ground is labeled \(60\text{ m}\). No other labels, lines, text, or axes appear.](https://nerd-notes.com/wp-content/uploads/ubq-frq-generated/stem-fig-1-1790505153-SDKdTa.jpg)

- **A.** \(15\text{ m/s}\)
- **B.** \(20\text{ m/s}\)
- **C.** \(25\text{ m/s}\)
- **D.** \(30\text{ m/s}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/122037/*