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Example of Math.sin() : double r = Math.sin(radian); // Output : 0.5
Example of Math.cos(): double r = Math.cos(radian); // Output : 0.865
Example of Math.tan(): double r = Math.tan(radian); // Output : 0.5776
21 st
Some More Programs Century #Coding & Computational Thinking
Skills
Write a program to find the increase in kinetic energy of a body of mass 500 g, when its
Program 1
velocity increases from x m/s to y m/s.
1 import java.util.*;
2 class kinetic_energy
3 {
4 public static void main ()
5 {
6 Scanner sc= new Scanner (System.in);
7 double massg, masskg, v1, v2, ke;
8 System.out.println("Enter v1 : ");
9 v1=sc.nextDouble();
10 System.out.println("Enter v2 : ");
11 v2=sc.nextDouble();
12 massg= 500;
13 masskg= 500.0/1000.0;
14 ke=1.0/2.0 * masskg * (Math.pow(v2,2) - Math.pow(v1,2));
15 System.out.println("The increase in Kinetic energy is: "+ke + "J");
16 }
17 }
You will get the following output:
146 Touchpad Computer Applications-IX

