- #1
Sean1082
- 2
- 0
Homework Statement
An elastic cord is 56 cm long when a weight of 73 N hangs from it but is 81cm long when a weight of 160 N hangs from it.
What is the spring constant "k" of this elastic cord?
Homework Equations
mg=kx
The Attempt at a Solution
No idea... my teacher doesn't know how to teach physics and the whole class is completely lost.