What is the book's speed as it slides away? The spring constant is 1450 N/m.
A student places her 300 g physics book on a frictionless table. She pushes the book against a spring, compressing the spring by 5.10cm , then releases the book.
Use energy considerations. How much work did she do compressing the book against the spring? How much energy is stored in a compressed ideal spring due to the work done compressing? When it slides away from the compressed position, how much kinetic energy will it have if it was at rest under the given compression and all the energy stored in the spring became kinetic energy of the book? To what speed does this kinetic energy correspond?
