5 மீ/வி திசைவேகத்தில் நகரும் 22 கிலோகிராம் நிறை கொண்ட ஒரு பொருள் இயக்க ஆற்றல் என்ன ?:

This question was previously asked in
RRB ALP Previous Paper 2 (Held On: 9 Aug 2018 Shift 2)
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  1. 275 J 
  2. 110 J 
  3. 1100 J 
  4. 2750 J  

Answer (Detailed Solution Below)

Option 1 : 275 J 
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கருத்து :

  • இயக்க ஆற்றல்: கொடுக்கப்பட்ட திசைவேகத்துடன் m நிறை பொருளை ஒரு புள்ளியில் இருந்து மற்றொரு இடத்திற்கு நகர்த்த தேவையான ஆற்றல் இயக்க ஆற்றல் எனப்படும்.

இயக்க ஆற்றல் பின்வருமாறு வழங்கப்படுகிறது:

KE = ½ × m V2

இங்கே KE = இயக்க ஆற்றல்

m = பொருளின் நிறை

V = ஒரு பொருளின் திசைவேகம்

கணக்கீடு :

கொடுக்கப்பட்டது  m = 22 கிகி, v = 5 மீ/வி

∴ KE = ½ × 22 × 52

KE = 275 J

எனவே, பொருளின் இயக்க ஆற்றல் 275 J
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