Package arch

Interface Summary
ForceProvider An abstraction for providing force.
 

Class Summary
Arch Models an arch using masses and springs.
FixedMass A MassRect that is unaffected by any force.
Gravity Gravity, the equal opportunity accelerator.
Main This class is written for you.
Mass Straightforward implementation of a mass simply holds the value of the mass (say, in grams)
MassRect A MassRect is-a Mass and has-a Rectangle that represents itself in the simulation.
MovableMass A MassRect that is affected by force.
Spring An unattached Spring with an initial displacement.
SpringBetweenMasses A Spring attached to two Masses.