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

float Force(float mass, float acceleration)
{
    float force;
    force = mass * acceleration;

    return force;
}

float Mass(float force, float acceleration)
{
    float mass;
    mass = force / acceleration;

    return mass;
}

float Acceleration(float force, float mass)
{
    float acceleration;
    acceleration = force / mass;

    return acceleration;
}

void main()
{
    int operation;
    float f, m, a;
    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("Enter the Mass: ");
        scanf("%f", &m);
        printf("Enter the Acceleration: ");
        scanf("%f", &a);
        printf("The Force is : %.2f N", Force(m, a));
        break;

    case 2:
        printf("Enter the Force: ");
        scanf("%f", &f);
        printf("Enter the Acceleration: ");
        scanf("%f", &a);
        printf("The Mass is : %.2f Kg", Mass(f, a));
        break;

    case 3:
        printf("Enter the Force: ");
        scanf("%f", &f);
        printf("Enter the Mass: ");
        scanf("%f", &m);
        printf("The Acceleration is : %.2f m/s^2", Acceleration(f, m));
        break;

    case 4:
        exit(0);
        break;

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