গতিশক্তি নিম্নলিখিত কোনটির সমান?

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RRB ALP CBT I 17 Aug 2018 Shift 2 Official Paper
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  1. Ma
  2. \(\frac{1}{2} m v^2\)
  3. mv
  4. mgh

Answer (Detailed Solution Below)

Option 2 : \(\frac{1}{2} m v^2\)
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Detailed Solution

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সঠিক উত্তরটি হল \({1\over 2}mv^2\)

Key Points

  • গতি শক্তি হল শক্তির একটি রুপ যা কোনো পদার্থের গতির কারনে উৎপন্ন হয়।
  • গাণিতিকভাবে, গতিশক্তি (KE) নিম্নলিখিত আকারে ব্যক্ত হয়:
    • \(\Rightarrow KE=\frac{1}{2} mv^2\)
  • যেখানে m হল পদার্থের ভর এবং v হল পদার্থের বেগ।
  • ভর-এর বিস্তার = [M1]
  • গতিবেগ এর মাত্রা = [L1T-1]
  • এইরূপে, গতিশক্তির মাত্রা  = [M1][L1T-1]2 = [M1L2T-2]
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