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education/physics/PHYS2210/Unit 1.md
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@ -30,10 +30,9 @@ $$a_{\text{instant}} = a = \frac{dv}{dt} = \frac{d}{dt} \frac{dx}{dt} = \frac{d^
3. $x = x_0 + v_0 t + \frac{1}{2} a t^2$ - Use when missing $v$ 3. $x = x_0 + v_0 t + \frac{1}{2} a t^2$ - Use when missing $v$
4. $v^2 = v_0^2 + 2a(x - x_0)$ - Use when missing $t$ 4. $v^2 = v_0^2 + 2a(x - x_0)$ - Use when missing $t$
(Actually useful equations)
Kinematics problems have a *start* and an *end* of the motion. $$ t = \frac{v_f - v_i}{a} $$
$$s = v_it + \frac{1}{2}at^2 $$
| Initial | Final |
| -------------- | ----- | | -------------- | ----- |
| $t_0$ | $t$ | | $t_0$ | $t$ |
| $v_0$ | $v$ | | $v_0$ | $v$ |