40 কেজি ওজনের একটি মেয়ে একটি সিড়িতে 4 সেকেন্ডে 5 মিটার চড়ে। তার দ্বারা বিকশিত ক্ষমতা হবে ________।

(g = 10 m/sধরে নিন)

This question was previously asked in
RRC Group D Previous Paper 2 (Held On: 18 Sep 2018 Shift 1)
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  1. 100 W
  2. 200 W
  3. 500 W
  4. 2000 W

Answer (Detailed Solution Below)

Option 3 : 500 W
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Detailed Solution

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→ প্রদত্ত তথ্য -

  • ভর, m = 40 কেজি

উচ্চতা, h = 5 মি

সময়, t = 4 সে

  • কৃত কার্য, W = mgh

W = 40 × 10 × 5 [g = 10 m/s2, প্রদত্ত]

W = 2000 জুল

→ ক্ষমতা, P = কৃত কার্য/সময়

P = 2000/4

P = 500 জুল/সেকেন্ড

P = 500 W

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