Question

C++ Programming Windows Application Console

Student Generated Problem Option 2.5 Option 2.5: Suppose Dave drops a watermelon off a high bridge and lets it fall until it hits the water. If we neglect air resistance, then the distance d in meters fallen by the watermelon after t seconds is d 0.5 g* t where the acceleration of gravity 9.8 meters/second?. Write a program that asks the user to input the number of seconds that the watermelon falls and the height h of the bridge above the water. The program should then calculate the distance fallen for each second from t 0 until the value of t input by the user. If the total distance fallen is greater than the height of the bridge, then the program should tell the user that the distance fallen is not valid. Sample Run 1: Please input the time of fall in seconds: Please input the height of the bridge in meters: 100 Time Falling (seconds Distance Fallen (meters) 4.9 19.6

Answer 1

C++ Program:

/* C++ Program that calculates the distance fallen by watermelon */

#include <iostream>

using namespace std;

//Main function
int main()
{
    int time, i;
    double distance, height;

    //Reading time
    cout << "\n Please input the time of fall in seconds: ";
    cin >> time;

    //Reading height of bridge
    cout << "\n Please input the height of bridge in meters: ";
    cin >> height;

    //Printing header
    cout << "\n \t Time Falling (seconds) Distance Fallen (meters) \n ";
    cout << " *********************************************************** \n ";

    //Iterating over time from 0 to t
    for(i=0; i<=time; i++)
    {
        //Calculating distance
        distance = 0.5 * 9.8 * (i*i);

        //Printing time and distance
        cout << "\n \t " << i << " \t\t\t " << distance;

        //Checking for distance
        if(distance > height)
        {
            //If distance crossed height
            cout << "\n Warning - Bad Data: The distance fallen exceeds the height of the bridge. \n\n";
            return 0;
        }
    }

    cout << "\n\n";

    return 0;
}

Sample Run:

CTC watermelon\bin Please input the time of fall in seconds: 2 Please input the height of bridge in meters: 100 wa .exe Time Falling (seconds) Distance Fallen (meters) 0 0 4.9 19.6 Process returned 0 C0xo) execution time 2.996 S Press any key to continue CATCwatermelon\bin\Debuglwatermelon.exe Please input the time of fall in seconds: 4 Please input the height of bridge in meters: 50 Time Falling (seconds) Distance Fallen (meters) 0 0 4.9 19.6 44.1 78.4 warning Bad Data: The distance fallen exceeds the height of the bridge Process returned o (Oxo) execution time 13.110 S Press any key to continue