Prueba.

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

public class movcircular extends JApplet {

public void init() {
// TODO start asynchronous download of heavy resources
}

public void paint(Graphics g){
g.setColor(Color.BLUE);
g.drawString("EL RADIO ES 10m", 10,10);
g.setColor(Color.BLACK);
g.drawOval(50,50 , 100, 100);
String aux=JOptionPane.showInputDialog(null,"VALOR DE LA ANGULO","ANGULO",JOptionPane.DEFAULT_OPTION);
int temp = Integer.parseInt(aux);
g.setColor(Color.LIGHT_GRAY);
g.fillArc(50, 50, 100, 100,0,temp*360/360);
g.setColor(Color.BLUE);
g.drawString("EL ANGULO ES:"+temp, 10,20);
g.setColor(Color.RED);

int t= 2;
int wo= 0;
double w= 0;
double wf=0;
double ae;
double ve;

w=temp/t;
g.drawString("W: "+w, 200,20);

int[]v= new int[2];
v[0]=-10; v[1]=-20;
double[]a= new double[2];
a[0]=-2.3; a[1]=-1.8;

ae= Math.sqrt(Math.pow(a[0],2)) + Math.pow(a[1],2);
ve= Math.sqrt(Math.pow(a[0],2)) + Math.pow(a[1],2);

wf = wo + ae*t;
g.drawString("wf: "+wf, 200,40);


double vf = 10*w ;
g.drawString("vf: "+vf, 200,60);

g.setColor(Color.MAGENTA);
g.drawOval(95,95, 8, 8);
g.drawOval(73,50, 8, 8);



}