Directions: Put a checkmark ( /) in the given situation below to illustrate the work being done. Then, briefly illustrate and explain why the work is done in those items.

1. A waiter carrying a tray full of local fruits like durian, lanzones and mangosteen above his head with one arm straight and moving across the room at a constant speed.

2. A lady going to the second floor using the elevator.

3. A girl kicking a small ball that flew towards the field.

4. A vendor securing a basket of puto and bibingkang kanin items on his head.

5. A body-builder holding a heavy barbell above his head for 5 minutes.​