---
title: The Science Behind the Hammer Throw
date: 2025-06-12T11:00:00-04:00
author: University of Maryland
canonical_url: "https://today.umd.edu/the-science-behind-the-hammer-throw"
section: Articles
---
# The Science Behind the Hammer Throw

*June 12, 2025* — by [Maryland Athletics Staff](/author/maryland-athletics-staff)


> Physics Professor Breaks Down Performance of Terp Track and Field Star Ahead of NCAA Championship Appearance

[Feature Video: The Science Behind the Hammer Throw](https://www.youtube.com/watch?v=TYMgumrTFqI)



Chioma Njoku M.S. ’25 spins faster and faster in the throwing circle before finally releasing the hammer and sending it soaring, a blend of elite athleticism and an elegant dance.

Each of those motions is a feat of physics, explains Peter Shawhan of the University of Maryland’s Department of Physics, as the hammer reaches speeds of up to 56 mph, with 300 pounds of pulling force needed to keep it going in its circular path.

He explains the science behind Njoku’s success as she prepares to compete in the NCAA Outdoor Track and Field Championships in Eugene, Ore., on Thursday afternoon.




**Topics:** [Athletics](https://today.umd.edu/tags/athletics)


**Tags:** [Physics](https://today.umd.edu/topic/physics), [Track and Field](https://today.umd.edu/topic/track-and-field), [Student Experience](https://today.umd.edu/topic/student-experience)


**Units:** [College of Computer, Mathematical, and Natural Sciences](https://today.umd.edu/topic/college-computer-mathematical-and-natural-sciences), [Department of Intercollegiate Athletics](https://today.umd.edu/topic/department-intercollegiate-athletics)