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| physics:kinematic_equations [2020/10/20 13:55] – epix | physics:kinematic_equations [2021/01/25 03:57] (current) – Add some definitions epix | ||
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| ====== Kinematic Equations ====== | ====== Kinematic Equations ====== | ||
| + | * $V = \frac{\Delta \text{position}}{\Delta \text{time}}$((displacement is the change in position, and velocity is that over time)) | ||
| * $V_f = V_i + at$ | * $V_f = V_i + at$ | ||
| * $V_f^2 = V_i^2+2aD$ | * $V_f^2 = V_i^2+2aD$ | ||
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| * $D = \frac{1}{2}(V_f + V_i)t$ | * $D = \frac{1}{2}(V_f + V_i)t$ | ||
| Take note of the missing variable for each equation, these don't have to be memorized since they are clearly derived from one root function. | Take note of the missing variable for each equation, these don't have to be memorized since they are clearly derived from one root function. | ||
| + | |||
| + | ===== Definitions ===== | ||
| + | ==== Vector ==== | ||
| + | A vector quantity includes direction within its value. | ||
| + | |||
| + | ==== Scalar ==== | ||
| + | Scalar quantities don't, speed is the obvious one. | ||
| + | |||
| + | ==== Free Fall ==== | ||
| + | When an object is in free fall, gravity is the only force affecting the object. Useful for narrowing forces for calculation. | ||
| ===== Example ===== | ===== Example ===== | ||
