Answer to Question #269104 in C++ for joey

Question

You are required to confirm the equation by a

simulation. In this simulation, you will consider how the ball moves

in very short time interval Δt.

I. You will assume that Δt is a constant double with a

value of 0.01. You can get the updated position using s = s + v * Δt. The velocity changes constantly—in

fact, it is reduced by the gravitational force of the earth. In a short time interval, Δv = –gΔt, you must

keep the velocity updated as v = v - g * Δt; In the next iteration, the new velocity is used to update the

distance.

You need to run the simulation until the cannon ball falls back to the ground. Your program should take

the initial velocity as an input. Update the position and velocity 100 times per second, but print out the

position only every full second. Also, printout the values from the exact formula s = vi t – (1/2) gt2

for the

comparison. Lastly plot the path that cannon ball will take to get the bonus marks.

Answer 1

#include <iostream>


using namespace std;


int main()
{
    double t=0.01;
    int v;
    cout<<"\nEnter initial velocity: ";
    cin>>v;
    cout<<"\nEnter initial position: ";
    int s;
    cin>>s;
    cout<<"\nEnter gravity: ";
    int g;
    cin>>g;
    for(int i=0;i<100;i++){
        s = s + v * t;
        v = v - g * t;
    }
    cout<<"\nFinal position = "<<s;
    return 0;
}