Given take-off speed v and an airplane acceleration a, you can compute the minimum runway length needed for an airplane to take off using the following formula:
length = v^2 / 2a
Input:
Speed v: 60
Acceleration a: 23
Output:
Runway length = 78.26
import java.io.*; import java.util.*; public class temp{ public static void main(String[] args){ Scanner sc = new Scanner(System.in); int a,v; System.out.print("Take-off Speed V: "); v = sc.nextInt(); System.out.print("Airplane acceleration a: "); a = sc.nextInt(); double length = Math.pow(v,2)/(2*a); System.out.println("\nRunway length = "+String.format("%.2f",length)); } }
INPUT_1:
Take-off Speed V: 70
Airplane acceleration a: 45
OUTPUT:
Runway length = 54.44
INPUT_2:
Take-off Speed V: 60
Airplane acceleration a: 23
OUTPUT:
Runway length = 78.26
INPUT_3:
Take-off Speed V: 80
Airplane acceleration a: 50
OUTPUT:
Runway length = 64.00
INPUT_4:
Take-off Speed V: 100
Airplane acceleration a: 10
OUTPUT:
Runway length = 500.00
ILLUSTRATION