vault backup: 2025-08-29 14:10:24
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Motion in a straight line is one dimensionial.
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Motion in a straight line is one dimensional.
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Kinematics or the physics of motion has 4 noteworthy parameters: time ($t$), position ($x$), velocity ($v$), and acceleration ($a$).
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@ -14,3 +14,7 @@ Average velocity over a time interval $\Delta t$ is defined to be: **the displac
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$$ \bar{v} = \dfrac{\text{final position-initial position}}{\text{final time - initial time}} = \dfrac{x_2 - x_1}{t_2 - t_1} = \dfrac{\Delta x}{\Delta t}$$
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**Speed (m/s)** is defined to be the total distance traveled divided by the time taken. Speed and velocity are *not the same*.
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$$ v_{\text{instant}} = v = \lim_{\Delta t \to 0}\frac{\Delta x}{\Delta t} = \frac{dx}{dt}$$
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- $x(t)$ -> position as a function of time
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