Final answer:
The total work done while carrying and placing a 1 kg book on a table with a height of 1 m is 9.8 joules, as lifting the book does work against gravity but carrying it horizontally does not.
Step-by-step explanation:
The student's question about the amount of work done while carrying a book relates to the concept of work in physics. To find the work done when the book is lifted and carried horizontally, we need to consider the forces acting on the book and the distance over which they act.
To calculate the work done in lifting the book, we use the formula W = Fd, where W is work, F is the force applied, and d is the distance over which the force is applied. Since the student lifts the book vertically, the force applied is equal to the weight of the book, which is the mass (1 kg) times the acceleration due to gravity (approximately 9.8 m/s2), hence a force of about 9.8 N. This force is applied over a distance of 1 meter (the height of the table).
Work done to lift the book = Fd = 9.8 N * 1 m = 9.8 J (joules).
While carrying the book horizontally for 12 meters, no additional work is done against gravity as there is no vertical displacement. Thus, the total work done while carrying the book is just the work done to lift it.
In summary, the total work done on the book while it was lifted and carried around is 9.8 joules.