RRB Technician Grade 3 previous year question
A girl weighing 420 N climbs a rope to a height of 6 m and takes 20 seconds to do it. What is her power output?
Asked in RRB Technician Grade 3 (10 Mar 2026 Shift 2) · Science
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Correct answer: (A) 126 W
Power = Work/Time = (Force × distance)/time = (420 N × 6 m)/20 s = 2520/20 = 126 W.
हिंदी में प्रश्न
यदि 420 N वजन वाली एक लड़की 6 m की ऊंचाई तक रस्सी पर चढ़ती है तथा उसे ऐसा करने में 20 सेकंड लगते हैं, तो उसका शक्ति आउटपुट (power output) ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 126 W
शक्ति = कार्य/समय = (बल × दूरी)/समय = (420 न्यूटन × 6 मीटर)/20 सेकंड = 126 वाट।
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