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--- 183_notes:momentum [2021/02/04 23:05] – [Changes in Motion] stumptyl
+++ 183_notes:momentum [2021/02/04 23:07] (current) – [When does the $\gamma$ factor matter?] stumptyl
@@ Line 15: / Line 15: @@
 ==== Definition of Momentum ====
-//Momentum is a [[:183_notes:scalars_and_vectors|vector]] that quantifies the "ease" with which an object's motion can be changed.//
+**Momentum** is a [[:183_notes:scalars_and_vectors|vector]] that quantifies the "ease" with which an object's motion can be changed.
 More formally, it is the product of the object's mass (a scalar), its velocity (a vector), and a proportionality constant  (that takes into account [[https://en.wikipedia.org/wiki/Special_relativity|relativistic motion]]). Mathematically, we represent the momentum like this:
@@ Line 25: / Line 25: @@
 $$\gamma = \dfrac{1}{\sqrt{1-\left(\dfrac{|\vec{v}|}{c}\right)^2}}$$
-where $c$ is the speed of light in vacuum ($c = 3.00 \times 10^8 \dfrac{m}{s}$).
+where **$c$** //is the speed of light in vacuum// **($c = 3.00 \times 10^8 \dfrac{m}{s}$).**
 ==== When does the $\gamma$ factor matter? ====
@@ Line 41: / Line 41: @@
 |       3e8  |       1  |  Infinite! Impossible!  |
-For most purposes, $\gamma \approx 1$, so we can often use the approximate formula for the momentum vector,
+For most purposes, __//$\gamma \approx 1$//__, so we can often use the approximate formula for the momentum vector,
 $$\vec{p} = m\vec{v}$$