cout << endl;
cout <<" Program will calculate the position and velocity of a falling object. ";
cout << endl << endl <<endl;
cout <<" Enter the initial height in feet (above 1000): ";
cin >> height;
cout << endl;
while ( height < POSITIVE_HEIGHT )
{ cout << " Invalid answer. Must enter height over 1000:" << endl;
cout << " Enter the initial height in feet (above 1000): ";
cin >> height;
cout << endl; }
cout <<" Enter the intial velocity in ft/sec: ";
cin >> velocity;
cout << endl;
while ( velocity < VELOCITY_LIMIT )
{ cout << " Invalid answer. Must enter velocity over -500: " << endl;
cout << " Enter the velocity above -500): ";
cin >> velocity;
cout << endl;
}