Six crates of different mass (m) are at rest on six springs. Each spring has a n
ID: 1514109 • Letter: S
Question
Six crates of different mass (m) are at rest on six springs. Each spring has a natural length (L_o) and a current Length (L). The natural length of the spring is its length before the create is placed on top of it. The current length of the spring is its length when the create is on top of it. Rank the stiffness of each spring Largest 1. 2. 3. 4. 5. 6. Smallest The ranking cannot be determined based on ihc information provided. Explain the reason for your ranking: Rank the elastic ptxential energy stored in each spring. Largest 1. 2. 3. 4. 5. 6. Smallest The ranking cannot be determined based on ihe information provided. Explain the reason for your ranking.Explanation / Answer
a)
KA = 10xg / (0.8-0.4) = 245 N/m UA = 19.6 J
KB = 20xg / (0.6-0.3) = 653.33N/m UB = 29.39 J
KC = 10x9.8/0.8-0.2 = 163.33N/m UC = 29.3994 J
KD = 5g / 1.2-0.3 = 54.44N/m UD = 22.0482
KE = 5g / 0.2 = 245N/m UE = 4.9 J
KF = 20g /0.2 = 980 N/m UF = 19.6 J
1 F 2 B 3 A 4 E 5 C 6 D
b)
1 B 2 C 3 D 4 A 5 F 6 E