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A spring of force constant K is divided into n equal parts. If these parts are connected in parallel, find the effective spring constant.

1. n²K
2. nK
3. K/n
4. K/n²

Correct answer: nK

Solution

When a spring is divided into n equal parts, the spring constant of each part becomes nK. When these parts are connected in parallel, the effective spring constant is the sum of the individual spring constants, which is nK.

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