\(1 \mathrm{~kg}\) द्रव्यमान वाले किसी पत्थर को \(1 \mathrm{~m}\) लम्बी द्रव्यमानरहित रस्सी के सिरे पर बाँधा जाता है। यदि रस्सी का भंजन तनाव \(400 \mathrm{~N}\) है, पत्थर को क्षैतिज तल में घुमाते समय, रस्सी के बिना टूटे, पत्थर का अधिकतम रेखिय वेग है:

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.