talaroue said:Homework Statement
A 1.7 kg book is lying on a 0.99-m-high table. You pick it up and place it on a bookshelf 2.43 m above the floor.
How much work does gravity do on the book
Homework Equations
Wmg=mgYi-mgYf
The Attempt at a Solution
I thought that is the correct equation so I simply just plugged and chugged but it came out wrong. What did I do wrong?
The book was most likely picked up and physically carried from the table to the shelf.
The book was most likely intentionally moved by someone or something, such as a person picking it up or a strong gust of wind blowing it onto the shelf.
Yes, the book's movement can be explained by the laws of physics, specifically Newton's laws of motion. An external force, such as a person's hand, acted upon the book causing it to move from the table to the shelf.
No, a book cannot move on its own without an external force acting upon it. Inanimate objects cannot move without a force being applied to them.
This would depend on the context and circumstances of the book's movement. It could be a simple act of organization or it could hold symbolic meaning, such as someone putting the book away after finishing reading it.