Two identical springs, each of spring constant 200 N/m, are joined end to end in series. What is the combined spring constant?
Answer and explanation
Correct answer: B. 100 N/m
- Step 1: For series springs, . Step 2. N/m. Answer: 100 N/m. Why not the others: 400 N/m is the result for parallel springs; 200 N/m is the spring constant of one spring; 50 N/m applies to a different arrangement.
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