Question

Task 3. Falling distance

When an object is falling because of gravity, the following formula can be used to determine

the distance the object falls in a specific time period:

d=(1/2)gt2

The variables in the formula are as follows: d is the distance in meters, g is 9.8, and t is the

amount of time, in seconds, that the object has been falling.

3.1.     Create a method: FallingDistance

Parameters:           t, object’s falling time (in seconds). t may or may not be an integer value!

Return value:         the distance, in meters, that the object has fallen during that time interval

Calculations:          Use Math.Pow() to calculated the square in the formula

3.2.     Demonstrate the method by calling it from a loop that passes the values 1 through 20 as arguments, and displays each returned value.

** JAVA PROGRAM **

Answer 1

Hi,

Please find below code as per your requirement.

Let me know if you have any doubt/concerns in this via comments.

Hope this answer helps you.

Thanks.

/***************JAVA CODE***************/

/**************************************/

public class FallingDistanceCalculator {

        /**
         * This is driver method which test the functionality of fallingDistance method
         * @param args
         */
        public static void main(String[] args) {
                
                //Iterating 20 times and calling fallingDistance method with i as parameter and printing output
                for (int i = 1; i <= 20; i++) {
                        System.out.println("Falling distance "+fallingDistance(i)+ " for falling time "+i+" seconds.");
                }
                
        }
        
        /**
         * This method calculates falling distance in meters for given falling time in seconds
         * @param fallingTime
         * @return
         */
        public static double fallingDistance(double fallingTime) {
                double g= 9.8;
                double half = 0.5; //here 1/2 converted to 0.5
                
                //here we are applying formula d = (1/5) * g * falling time power 2
                double fallingDistanceInMeters = (half * g) * Math.pow(fallingTime, 2);
                return fallingDistanceInMeters;
        }
        
        
}

/*****************Ouput*******************/