#include "stdafx.h"
 
int main()
{
int speed, dist, time, force, mass, masss, accel, velo, moment;
int choice, choose;
char pilih, pick;
 
do{
	printf("\t\t\tWelcome to Physics (Force and Motion)\n");
	printf("\t\t***************************************************\n");
	printf("\t\t\tCHOOSE SECTION\n\n");
 
	printf("\t1. FORCE\n");
	printf("\t2. SPEED\n");
	printf("\t3. MOMENTUM\n");
	printf("\t4. END\n\n");
	printf("Choice: ");
	scanf("%d", &choice);
 
switch(choice){
 
	case 1:
		do{
		printf("\n\t\tCHOOSE WHICH SECTION\n");
		printf("\t1. Info\n");
		printf("\t2. Calculation\n");
		printf("\t3. End\n");
		printf("Choice: ");
		scanf("%s", &pilih);
 
 
	switch(pilih){
 
		case '1':
			printf("Force = Mass * Acceleration\n");
			printf("The unit is Newton\n");
			break;
 
		case '2':
			printf("Force = Mass * Acceleration\n\n");
			printf("Input Mass in kilogram: ");
			scanf("%d", &mass);
			printf("Input Acceleration in meter per second second: ");
			scanf("%d", &accel);
			force = mass * accel;
			printf("Force is %d\n", force);
			break;
 
		case '3':
			printf("End\n");
			break;
 
		default:
			printf("Invalid section\n");
		}break;
	}while(pilih !=1);
 
 
 
	case 2:
		do{
		printf("\t\t\tCHOOSE WHICH SECTION\n");
		printf("1.Info\n");
		printf("2.Calculation\n");
		printf("3.End\n");
		printf("Choice: ");
		scanf("%d", &choose);
 
	switch(choose){
 
		case 1:
			printf("Speed = Distance Taken / Time\n");
			printf("The unit in meter per second\n");
			break;
 
		case 2:
			printf("Speed = Distance Taken / Time\n");
			printf("Input distance in meter:");
			scanf("%d", &dist);
			printf("Input time in second:");
			scanf("%d", &time);
			speed=dist/time;
			printf("Speed is %d\n", speed);
			break;
 
		case 3:
			printf("End\n");
			break;
 
		default:
			printf("Invalid section\n");
}
}while(choose !=2);
 
 
 
	case 3:
		do{
		printf("\t\t\tCHOOSE WHICH SECTION\n");
		printf("1.Info\n");
		printf("2.Calculation\n");
		printf("3.End\n");
		printf("Choice: ");
		scanf("%s", &pick);
 
	switch(pick){
 
		case '1':
			printf("Momentum = Mass * Velocity\n");
			printf("The unit in kilogram meter per second\n");
			break;
 
		case '2':
			printf("Momentum = Mass * Velocity\n");
			printf("Input Mass in kilogram:");
			scanf("%d", &masss);
			printf("Input Velocity in meter per second:");
			scanf("%d", &velo);
			moment=masss*velo;
			printf("Momentum is %d", moment);
			break;
 
		case '3':
			printf("End\n");
			break;			
 
		default:
			printf("Invalid section\n");
}
}while(pick !=3);
 
 
	case 4:	
		printf("Thank you for using this program\n\n");
		printf("This program are made by Jakuzzi group\n\n");
		printf("The creator are:\n\n");
		printf("\t1.MOHAMAD JEFFRI BIN LEE MOHD. RAMLI\n");
		printf("\t2.AMAR BIN MOHD. MARITI\n");
		printf("\t3.WAN NORAIMI BINTI ZAINAL ABIDIN\n");
		printf("\t4.MUHAMMAD DANIAL BIN ISMAIL\n\n");
		printf("\tFrom Mecha 2 Sem 2 2008\n");
		printf("\tGERMAN-MALAYSIAN INSTITUTE\n");
		break;
 
	default:
		printf("Invalid selection\n");
 
}
}while(choice !=4);
 
return 0;
}