Chapter 2 Exercise 12, Introduction to Java Programming, Tenth Edition Y. Daniel LiangY.

(Physics: finding runway length) Given an airplane’s acceleration a and take-off speed v, you can compute the minimum runway length needed for an airplane to take off using the following formula: length = v^2/2a Write a program that prompts the user to enter v in meters/second (m/s) and the acceleration a in meters/second squared (m/s2 ), and displays the minimum runway length.

import java.util.Scanner;
 
public class ProgrammingEX2_12 {
 public static void main(String[] args) {
 
  Scanner input = new Scanner(System.in);
 
  System.out.print("Enter speed and acceleration:");
  double v = input.nextDouble();
  double a = input.nextDouble();
  double length = Math.pow(v, 2)/(2*a);
   
  System.out.print("The minimum runway length for this airplane is " + length);
 
 }
}