- #1
Estrex
- 2
- 0
A uniform spring whose unstretched length...
A uniform spring whose unstretched length is L has a spring constant k. the spring is cut into two pieces of unstretched lengths L1 and L2, with L1 = nL2. What are the corresponding spring constants k1 and k2 in terms of n and k?
The answer is k1 = (n+1)k/n and k2 = (n+1)k. I have no idea how they got that. I tried setting up the force equation F = kL and solving for k, k = F/L, but the substitution never worked out.
A uniform spring whose unstretched length is L has a spring constant k. the spring is cut into two pieces of unstretched lengths L1 and L2, with L1 = nL2. What are the corresponding spring constants k1 and k2 in terms of n and k?
The answer is k1 = (n+1)k/n and k2 = (n+1)k. I have no idea how they got that. I tried setting up the force equation F = kL and solving for k, k = F/L, but the substitution never worked out.