Solution Found!
An ideal spring of negligible mass is 12.00 cm long when
Chapter 9, Problem 14E(choose chapter or problem)
An ideal spring of negligible mass is 12.00 cm long when nothing is attached to it. When you hang a 3.15-kg weight from it, you measure its length to be 13.40 cm. If you wanted to store 10.0 J of potential energy in this spring, what would be its ?total? length? Assume that it continues to obey Hooke’s law.
Questions & Answers
QUESTION:
An ideal spring of negligible mass is 12.00 cm long when nothing is attached to it. When you hang a 3.15-kg weight from it, you measure its length to be 13.40 cm. If you wanted to store 10.0 J of potential energy in this spring, what would be its ?total? length? Assume that it continues to obey Hooke’s law.
ANSWER:Solution 14E Hooke’s law is given by F = kx, where k is the force constant of a spring and x is its elongation. When the 3.15 kg weight is hung from the spring, its length changes by x = 13.40 12.00 cm = 1.40 cm = 0.014 m Now, the force needed to extend the