Kinematics Study Guides |
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You'll need to be able to recognize these (and various permutations) on sight: | ||

Motion Graph Analysis |
Derivatives & Integrals & Graphs (oh my) |
Parabolic Motion |

1) Is the object moving in one or two dimensions? - Find x components
- Physics convention is that motion to the right on the x axis is positive
- Physics convention is that motion the the left on the x axis is negative
- Find y components
- Physics convention is that motion upwards on the y axis is positive
- Physics convention is that motion downwards on the axis is negative
- We won't work in the z direction
- Two dimensional problems require analyzing motion in one dimension first and then finishing by completing an analysis of motion in the second dimension.... it can get a bit tricky.
2) Gravity ONLY works in the Y dimension - Gravity is
present in vertical motion problems**ALWAYS** - Gravity is totally absent in x-motion problems
- We will use 9.81 m/s/s as our class value for acceleration here on the surface of the Earth. Please keep in mind that on the AP test and on warmup problems we will often just round that to
*10. m/s/s*
3) Air Friction is * FORUMLAE OBJECTUS ( Subscripts:
variables: - v = velocity
- a = acceleration
- t = time
- x = displacement in the x dimension
- y = displacement in the y dimension
* these show motion in the x direction, replace x with y to use the same formulae in the vertical direction NOTE: Sig figs will ALWAYS cost you |
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