Ap Physics:kinematics
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13 terms
Terms | Definitions |
|---|---|
 Displacement | Change in POSITION |
| If acceleration is constant, then Aavg= | A |
| v= | Vi+at |
| x= | Xi+V+1/2at^2 |
| v^2= | Vi^2=2a(x-Xi) |
| Position vs time graph;slope | Vavg |
| Shortcuts for objects that start from rest and have constant a (x vs. t) | 1. Vavg=Vinstantaneous 2.@ midpoint in time, 1/4 distance has bee traveled, not 1/2 3. instantaneous velocity at any point is twice average velocity from t=0 to that point |
| Velocity VS. Time, slope | =acceleration |
| Given a v VS. t graph, the area between the graph and the t axis equals the object's _____ | displacement |
| Projectile motion: @ top Vy=_ | 0 |
| Projectile Motion: Horizonontal motion | Δx=Vixt Vx=Vix=cosxi(launch angle) Ax=0 |
| Projectile Motion; Vertical | y=Yi+Viyt-1/2gt^2 Vy=Viy-gt Ay=-g |
| projectile range | horizontal displacement, assuming it land at original height |
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