Why is momentum represented by the letter p?
Understand the Problem
The question is asking for the reason why the symbol for momentum is represented by the letter 'p'. This involves an exploration of the historical and scientific conventions used in physics.
Answer
The symbol 'p' for momentum traces back to the Latin word 'impetus.'
The final answer is that the letter 'p' represents momentum because it traces back to the Latin word 'impetus.'
Answer for screen readers
The final answer is that the letter 'p' represents momentum because it traces back to the Latin word 'impetus.'
More Information
In physics, momentum (denoted as 'p') is the product of an object's mass and velocity. The choice of 'p' for momentum avoids confusion with other quantities like mass (m) and velocity (v), and its origins are tied to the Latin word 'impetus,' relating to the concept of moving forcefully.
Tips
A common mistake is assuming 'p' was arbitrarily chosen, but it actually has historical and linguistic significance. Understanding the historical context can prevent confusion.
Sources
- Glossary: Momentum - quantumphysicslady.org
