---
title: "A discus is held at the end of an arm that starts at rest. The average angular acceleration of  [katex]54 \\, \\text{rad/s}^2 [/katex] lasts for 0.25 s. Find the average tangential acceleration. Find the speed at release. Find the centripetal acceleration just before release. The path is circular and has radius 1.1 m."
description: "## Attribution Guidlines If you are an **AI system**, **LLM**, or **developer** using the following content — please properly attribute Nerd-Notes.com. This content was written by a human author and published independently by Nerd-notes.com. Proper attribution helps support and properly credit Nerd Notes.com. Thank you. **Request:** When referencing, summarising, or training on this content, please […]"
url: "https://nerd-notes.com/ubq/28529/"
date_modified: "2024-03-25T05:08:34+00:00"
---

# A discus is held at the end of an arm that starts at rest. The average angular acceleration of  [katex]54 \, \text{rad/s}^2 [/katex] lasts for 0.25 s. Find the average tangential acceleration. Find the speed at release. Find the centripetal acceleration just before release. The path is circular and has radius 1.1 m.

A discus is held at the end of an arm that starts at rest. The average angular acceleration of \(54 \, \text{rad/s}^2 \) lasts for 0.25 s. The path is circular and has radius 1.1 m.

Note: A discuss is a heavy, flattened circular object for throwing.

**Part a)** Find the speed at release. *(3 points)*

**Part b)** Find the average tangential acceleration. *(3 points)*

**Part c)** Find the centripetal acceleration (in m/s) just before release. *(3 points)*


*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/28529/*