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Football · Foundation · 3 hours

Physics of the Ball

Drag, the Magnus force, the drag crisis, the bounce and the serve window: the equations the films run on.

4lessons
12quiz questions
0%your progress
£59or in a bundle
Start the first lessonSit the exam
A 27 m/s free kick from 22 m, seen from above: aimed 14° outside the post, around a wall,and bent back by sidespin-6-4-202059.151522distance towards goal, msideways, mwallgoal0 rpm · wide by 1.8 m400 rpm · in the net800 rpm · in the netno spin400 rpm of sidespin800 rpm of sidespin
What the course builds: a ball's flight integrated from the forces on it, with the bend that spin actually buys.
Syllabus

What you will work through

0 of 4 done

Flight

1Drag, gravity, Magnus30 min · widget · 3 q2The drag crisis and the knuckleball25 min · widget · 3 q

On the court

3What the surface does25 min · widget · 3 q4The acceptance window20 min · widget · 3 q
Outcomes
  • Integrate a ball's flight with drag and lift
  • Explain why the 2010 ball knuckled
  • Compute a bounce on any surface
  • Read a serve's acceptance window
How it is taught

Every lesson runs the model it teaches through the platform's own endpoints: the number on the page is the number the Arena prices with. Quizzes explain every answer. The exam draws ten questions from the lessons, passes at 70%, and issues a certificate with a verification token.

The first lesson is free

Read and run the first lesson of any course without an account. The rest unlocks with an order code, and the book that goes with the course is in the Library.