kinematic tricks

[Timorito]

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any kinematic tricks that help out really nicely? as in equation manupilations, etc etc

 

[sazerac]

Kinematic equations involve the interplay of four key variables, X V A and T. Some other variables pop in from time to time, like X0 and V0, but focus on the big four.

Each of the four kinematics equations, by itself, only involves three of those big four variables.

When given a kinematics problem, you are usually given two variables, asked for a third variable, and the fourth is never even mentioned. Use this to quickly figure out which equation to use.

Nobody cares about acceleration?
X = X0 + (V + V0)T/2

Nobody talking about time?
V^2 = V0^2 + 2A(X - X0)

etc

 

[sps27]

any kinematic tricks that help out really nicely? as in equation manupilations, etc etc

Listen to EK Audio Osmosis audio files esp., the ones on Kinematics. They talk about many tricks in there.....