40 किलो वजनाची एक मुलगी 4 सेकंदात 5 मीटर उंच पायऱ्या चढते. तिच्याद्वारे निर्माण केलेली शक्ती ________ असेल.

(g = 10 मीटर/सेकंद2 घ्या)

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 वॅट
  2. 200 वॅट
  3. 500 वॅट
  4. 2000 वॅट

Answer (Detailed Solution Below)

Option 3 : 500 वॅट
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Detailed Solution

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→ दिलेली माहिती -

  • वस्तुमान, m = 40 किलो

उंची, h = 5 मी

वेळ, t = 4 सेकंद

  • कार्य, W = mgh

W = 40 x 10 x 5 [g = 10 m/s2, दिलेले]

W = 2000 ज्युल

→ शक्ती, P = कार्य / वेळ

P = 2000/4

P = 500 ज्युल/से

P = 500 W
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