John and Haven move a large bookcase from the bedroom to the living room.
The bookcase has a mass of 45 kg. They apply a force of 300 N to move the
bookcase 8 m. It takes them 20 seconds to move the bookcase. (Use correct
units in all answers.)
a. How much work do they do to move the bookcase? (3 points)
b.What is their power? (3 points)
