org.opensourcephysics.sip.ch02
Class FallingParticle

java.lang.Object
  org.opensourcephysics.sip.ch02.Particle
      org.opensourcephysics.sip.ch02.FallingParticle

public class FallingParticle
extends Particle

FallingParticle models a falling ball by subclassing the Particle class.

Constructor Summary

FallingParticle(double y, double v)
Constructs a Falling Particle with the given initial conditions.

Method Summary

double	analyticPosition() Computes the position of the ball at the current time using the analytic solution of the equation of motion.
double	analyticVelocity() Computes the velocity of the ball at the current time using the analytic solution of the equation of motion.
void	step() Steps (advances) the dynamical variables using the Euler method.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FallingParticle

public FallingParticle(double y,
                       double v)

Constructs a Falling Particle with the given initial conditions.

Parameters:

y - double

v - double

Method Detail

step

public void step()

Steps (advances) the dynamical variables using the Euler method.

Specified by:

step in class Particle

analyticPosition

public double analyticPosition()

Computes the position of the ball at the current time using the analytic solution of the equation of motion.

Specified by:

analyticPosition in class Particle

Parameters:

y0 - double

v0 - double

Returns:

double

analyticVelocity

public double analyticVelocity()

Computes the velocity of the ball at the current time using the analytic solution of the equation of motion.

Specified by:

analyticVelocity in class Particle

Parameters:

y0 - double

v0 - double

Returns:

double