The work done in raising the book from the floor to the top of the table, at height h, is W = F.d = mg.h. So, we have, from the work-energy theorem : U(floor) + work done = U(table), and plugging in values, U(floor) + mgh = mgh. Hence, U(floor) = 0chandran said:What energy a book resting on a floor has? If it rests on a table it will have a potential energy equal to mgh.
Potential energy is the stored energy an object possesses due to its position or configuration. It is the energy that an object has the potential to convert into other forms of energy, such as kinetic energy, when it is in motion.
When a book is resting on a floor, it has potential energy due to its position above the ground. The book has the potential to fall and convert its potential energy into kinetic energy when it is dropped.
The potential energy of a book resting on a floor is affected by its mass, height from the ground, and the strength of the gravitational field it is in. The higher the book is from the ground and the heavier it is, the more potential energy it will have.
The potential energy of a book resting on a floor can be calculated using the formula PE = mgh, where m is the mass of the book, g is the acceleration due to gravity (9.8 m/s²), and h is the height of the book from the ground in meters.
Yes, potential energy can be converted into other forms of energy. When the book is dropped from its resting position, its potential energy is converted into kinetic energy. Other examples of potential energy being converted into kinetic energy include a stretched spring releasing and a raised weight falling.