एक निकाय 5 m प्रति सेकेंड वर्ग के स्थिरांक त्वरण के साथ विरामावस्था से गतिमान होती है। तो 5 सेकेंड में तय की गयी दूरी लगभग कितनी है?

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ISRO VSSC Technical Assistant Mechanical 8 Feb 2015 Official Paper
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  1. 12.5 m
  2. 62.5 m
  3. 125 m
  4. 130 m

Answer (Detailed Solution Below)

Option 2 : 62.5 m
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संकल्पना:

गति का समीकरण:

इसे उस समीकरण के रूप परिभाषित किया जाता है जो समय के फलन के रूप में इसके गति के संदर्भ में किसी भौतिक प्रणाली के व्यवहार को वर्णित करता है। 

गति के तीन समीकरण निम्न हैं:

  1. v = u + at
  2. \(s = ut + \frac 12at^2\)
  3. v2 = u2 + 2as

जहाँ u = प्रारंभिक वेग, v = अंतिम वेग, a = त्वरण, s = विस्थापन, t = समय। 

गणना:

दिया गया है:

u = 0 m/s, a = 5 m/s2, t = 5 s

\(s = ut + \frac 12at^2\)

\(s = 0\times t + \frac 12at^2\)

\(s = \frac 12at^2 = \frac 12 \times 5\times 5^2= 62.5 ~m\)

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