RRB Group D previous year question
The work done by friction on a moving object is usually __________.
Asked in RRB Group D CBT-1: 09 Jan 2026 Shift 1 · Science
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Correct answer: (C) negative
Friction opposes motion, so the work it does on a moving object is negative.
हिंदी में प्रश्न
किसी गतिशील वस्तु पर घर्षण द्वारा किया गया कार्य सामान्यतः __________ होता है।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) ऋणात्मक
सही उत्तर: विकल्प C (ऋणात्मक)
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