If the length of a #13 cm# spring increases to #40 cm# when a #7 kg# weight is hanging from it, what is the spring's constant?
1 Answer
Oct 22, 2016
I got:
Explanation:
Consider that at equilibrium the elastic force
We get:
(eleasic force upwards and weight downwards)
The displacement
(I changed into meters)
rearranging we get: