If the length of a 23 cm spring increases to 82 cm when a 5 kg weight is hanging from it, what is the spring's constant?
1 Answer
Jan 17, 2017
I got
Explanation:
In this type of problems you need to use Hooke's !aw and Newton's second law:
We can write:
But the elongation (in meters), according to our coordinate system, is negative so we get:
