From d3253699a4b41740dd7cf94992b4801cf44dbbc1 Mon Sep 17 00:00:00 2001 From: arc Date: Fri, 29 Aug 2025 13:55:23 -0600 Subject: [PATCH] vault backup: 2025-08-29 13:55:23 --- education/physics/PHYS2210/Unit 1.md | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/education/physics/PHYS2210/Unit 1.md b/education/physics/PHYS2210/Unit 1.md index d4c1ef9..51a705f 100644 --- a/education/physics/PHYS2210/Unit 1.md +++ b/education/physics/PHYS2210/Unit 1.md @@ -2,4 +2,15 @@ Motion in a straight line is one dimensionial. Kinematics or the physics of motion has 4 noteworthy parameters: time ($t$), position ($x$), velocity ($v$), and acceleration ($a$). -Kinematic problems have a start and end of motion. \ No newline at end of file +Kinematic problems have a start and end of motion. + +# Displacement + +Displacement is calculated with the formula: +$$\Delta x = \text{x-value of final position} - \text{x-value of initial posiion}$$ + +# Velocity +Average velocity over a time interval $\Delta t$ is defined to be: **the displacement** (net change in position), **divided by** **the time taken**. + +$$ \bar{v} = \dfrac{\text{final position-initial position}}{\text{final time - initial time}} = \dfrac{x_2 - x_1}{t_2 - t_1} = \dfrac{\Delta x}{\Delta t}$$ +**Speed (m/s)** is defined to be the total distance traveled divided by the time taken. Speed and velocity are *not the same*.