Respuesta :

osumanugarba
1. Read the question
 
 2. Try to solve the answer

3. Then write the answer down 
AL2006
In the Physics definition of 'work' :


-- Pick up a book from off the table.


-- Push a crate along the floor.

-- Roll a ball up a ramp.


-- Drop a rock off a cliff into the water.
(Gravity does the work in this one.)