Dinamica

import java.applet.Applet;
import java.awt.*;
import javax.swing.JApplet;
import javax.swing.JOptionPane;

public class Dinamica extends Applet {
public void init(){
}
public void paint(Graphics g){
String aux=JOptionPane.showInputDialog(null,"INGRESE EL VALOR DE LA BASE","BASE",JOptionPane.DEFAULT_OPTION);
double base=Double.parseDouble(aux);
String aux2=JOptionPane.showInputDialog(null,"INGRESE EL VALOR DE LA ALTURA","ALTURA",JOptionPane.DEFAULT_OPTION);
double altura=Double.parseDouble(aux2);
double angulo;

g.drawLine(30,150,(int) base+30,150 );
g.drawLine((int)base+30, 150,(int)base+30,150-(int)altura);
g.drawLine(30, 150, (int)base+30, 150-(int)altura);
double tan=altura/base;
angulo=Math.atan(tan);
angulo=Math.toDegrees(angulo);

String aux8=JOptionPane.showInputDialog(null,"INGRESE LA DISTANCIA a DE LA MASA","INGRESE DISTANCIA a",JOptionPane.DEFAULT_OPTION);
double ab=Double.parseDouble(aux8);
double c=ab*Math.cos(angulo*Math.PI/180);
double xo=30+c;
double l=ab*Math.sin(angulo*Math.PI/180);
double yo=150-l;
double d=20*Math.cos(angulo*Math.PI/180);
double xo1=xo+d;
double m=(c+d)*Math.tan(angulo*Math.PI/180);
double yo1=150-m;
g.setColor(Color.RED);
g.drawLine((int)xo,(int)yo,(int)xo1,(int)yo1);
double dx=10*Math.sin(angulo*Math.PI/180);
double dy=10*Math.cos(angulo*Math.PI/180);
double xo2=xo1-dx;
double yo2=yo1-dy;
g.drawLine((int)xo1,(int)yo1,(int)xo2,(int)yo2);
g.drawLine((int)xo2,(int)yo2,(int)(xo-dx),(int)(yo-dy));
g.drawLine((int)(xo-dx),(int)(yo-dy),(int)xo,(int)yo);

String aux3=JOptionPane.showInputDialog(null,"INGRESE EL VALOR DE LA FUERZA","FUERZA EN NEWTONS",JOptionPane.DEFAULT_OPTION);
double fuerza=Double.parseDouble(aux3);
String aux4=JOptionPane.showInputDialog(null,"INGRESE EL VALOR DE LA MASA","MASA EN KILOGRAMOS",JOptionPane.DEFAULT_OPTION);
double masa=Double.parseDouble(aux4);

String aux5=JOptionPane.showInputDialog(null,"INGRESE EL VALOR DEL COEFICIENTE DE ROZAMIENTO","COEFICIENTE DE ROZAMIENTO",JOptionPane.DEFAULT_OPTION);
double niu=Double.parseDouble(aux5);

String aux6=JOptionPane.showInputDialog(null,"INGRESE EL TIEMPO","TIEMPO EN SEGUNDOS",JOptionPane.DEFAULT_OPTION);
double tiempo=Double.parseDouble(aux6);

double gravedad=9.8;
double aceleracion;
aceleracion=(fuerza/masa)-(gravedad*((niu*Math.cos(angulo*Math.PI/180))+Math.sin(angulo*Math.PI/180)));
double desplazamiento= aceleracion*0.5*tiempo*tiempo;
double xn=desplazamiento*Math.cos(angulo*Math.PI/180);
double yn=desplazamiento*Math.sin(angulo*Math.PI/180);
g.setColor(Color.BLUE);
g.drawLine((int)(xo+xn),(int)(yo-yn), (int)(xo1+xn), (int)(yo1-yn));
g.drawLine((int)(xo1+xn),(int)(yo1-yn),(int)(xo2+xn),(int)(yo2-yn) );
g.drawLine((int)(xo2+xn),(int)(yo2-yn),(int)(xo+xn-dx),(int)(yo-yn-dy) );
g.drawLine((int)(xo+xn-dx),(int)(yo-yn-dy),(int)(xo+xn),(int)(yo-yn) );
g.setColor(Color.GREEN);
double yb=5*Math.sin((angulo)*Math.PI/180);
double xb=5*Math.cos((angulo)*Math.PI/180);
double frx=0.1*miu*masa*gravedad*Math.cos(angulo*Math.PI/180);
double fry=0.1*miu*masa*gravedad*Math.sin(angulo*Math.PI/180);
g.drawLine((int)(xo+xn-xb+(0.5*d)),(int)(yo-yn-yb-dx),(int)(xo+xn-xb+(0.5*d)-frx),(int)(yo-yn-yb-dx+fry) );
g.drawString("fr",(int)(xo+xn-xb+(0.5*d)-frx-15),(int)(yo-yn-yb-dx+fry));

g.setColor(Color.BLUE);
double ny=0.1*masa*gravedad*Math.cos(angulo*Math.PI/180);
double nx=0.1*masa*gravedad*Math.sin(angulo*Math.PI/180);
g.drawLine((int)(xo+xn-xb+(0.5*d)),(int)(yo-yn-yb-dx),(int)(xo+xn-xb+(0.5*d)-nx),(int)(yo-yn-yb-dx-ny) );
g.drawString("FN",(int)(xo+xn-xb+(0.5*d)-nx-20),(int)(yo-yn-yb-dx-ny));
g.setColor(Color.cyan);
double fx=0.1*fuerza*Math.cos(angulo*Math.PI/180);
double fy=0.1*fuerza*Math.sin(angulo*Math.PI/180);
g.drawLine((int)(xo+xn-xb+(0.5*d)),(int)(yo-yn-yb-dx),(int)(xo+xn-xb+(0.5*d)+fx),(int)(yo-yn-yb-dx-fy) );
g.drawString("F",(int)(xo+xn-xb+(0.5*d)+fx-15),(int)(yo-yn-yb-dx-fy));

g.setColor(Color.green);
double peso=0.1*masa*gravedad;
g.drawLine((int)(xo+xn-xb+(0.5*d)),(int)(yo-yn-yb-dx),(int)(xo+xn-xb+(0.5*d)),(int)(yo-yn-yb-dx+peso) );
g.drawString("P",(int)(xo+xn-xb+(0.5*d)-15),(int)(yo-yn-yb-dx+peso));

g.drawLine(200,30,200,150);
g.drawLine(200,150,350,150);
g.drawLine(350,150,350,30);
g.drawLine(350,30,200,30);
for(int i=0;i<8;i++){
g.drawLine(200,30+(15*i),350,30+(15*i));
}
g.drawLine(320, 30, 320, 150);
g.setColor(Color.RED);
g.drawString("FUERZA", 202,44);
g.drawString(""+fuerza, 322,44);
g.drawString("MASA", 202,59);
g.drawString(""+(int)masa, 322,59);
g.drawString("TIEMPO", 202,74);
g.drawString(""+tiempo, 322,74);
g.drawString("NIU", 202,89);
g.drawString(""+niu, 322,89);
g.drawString("ACELERACION", 202,104);
g.drawString(""+(short)aceleracion, 322,104);
g.drawString("DESPLAZAMIENTO", 202,119);
g.drawString(""+(short)desplazamiento, 322,119);
g.drawString("FUERZA NORMAL", 202,134);
g.drawString(""+(short)(niu*masa*gravedad*Math.cos(angulo*Math.PI/180)), 322,134);
g.drawString("ANGULO PLANO", 202,149);
g.drawString(""+(short)angulo, 322,149);
}
}