RRB Group D practice question
A force acts on a 4 kg body at rest and produces an acceleration of 3 m/s². The final velocity after 5 seconds is:
From a RRB Group D General Awareness practice set · General Awareness
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Correct answer: (D) 15 m/s
Using v = u + at with u=0, a=3 m/s², t=5s: v = 0 + 3×5 = 15 m/s.
हिंदी में प्रश्न
4 kg द्रव्यमान वाले िकसी र िपंड पर एक बल काय करता है और 3 m/s² का त्वरण उत्पन्न करता है। 5 सेकंड के बाद अंितम वेग होगा।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) 15 m/s
v = u + at सूत्र से, u=0, a=3 मी/से², t=5 से: v = 0 + 3×5 = 15 मी/से.
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