#include <stdio.h>
#include <stdlib.h>

float Force()
{
    float force, mass, acceleration;
    printf("Enter the Mass: ");
    scanf("%f", &mass);
    printf("Enter the Acceleration: ");
    scanf("%f", &acceleration);

    force = mass * acceleration;

    return force;
}

float Mass()
{
    float force, mass, acceleration;
    printf("Enter the Force: ");
    scanf("%f", &force);
    printf("Enter the Acceleration: ");
    scanf("%f", &acceleration);

    mass = force / acceleration;

    return mass;
}

float Acceleration()
{
    float force, mass, acceleration;
    printf("Enter the Force: ");
    scanf("%f", &force);
    printf("Enter the Mass: ");
    scanf("%f", &mass);

    acceleration = force / mass;

    return acceleration;
}

void main()
{
    int operation;
    printf("-----Select the Operation------\n");
    printf("1. Calculate Force\n2. Calculate Mass\n3. Calculate Acceleration\n4. Exit\n");
    printf("Enter the corresponding number of Operation: ");
    scanf("%d", &operation);

    switch (operation)
    {
    case 1:
        printf("The Force is : %.2f N", Force());
        break;

    case 2:
        printf("The Mass is : %.2f Kg", Mass());
        break;

    case 3:
        printf("The Acceleration is : %.2f m/s^2", Acceleration());
        break;

    case 4:
        exit(0);
        break;

    default:
        printf("Wrong input");
    }
}