Tonights Homework Postponed•Due to a daylight savings time SNAFU it “looks” like tonights homework is due Wednesday.•It is really due at 1am Wednesday, which is basically tonight•I will change this so that it is really due Wednesday night•Next week we will go back to Tuesday at midnight due times.
Equilibrium and motion around it•Most motion is not constant velocity or constant acceleration•Most common: little disturbances around equilibrium•Three forms: stable, neutral, and unstable
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Potential energy curves and equilibrium•Imagine a force which has a potential energy curve like that shown•The force everywhere isF = -dU/dx•Force is zero when slope of potential is zeroU(x)xWhen the force is zero, the object can remain at rest. These are equilibrium points.StableUnstable