जेव्हा 20 ग्रॅम वस्तुमानाच्या एका वस्तूवर बल लागू केले जाते तेव्हा वस्तूवर 5.0 cm/s2   त्वरण निर्माण करते, तर वस्तूवर कार्य करणारे बल किती?

  1. \(2 \times 10^{-3} \ N\)
  2. \(4 \times 10^{-3} \ N\)
  3. \(1.0 \times 10^{-3} \ N\)
  4. \(5 \times 10^{-3} \ N\)

Answer (Detailed Solution Below)

Option 3 : \(1.0 \times 10^{-3} \ N\)
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Detailed Solution

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संकल्पना:

  • बल: अशी आंतरक्रिया जी वस्तूवर कार्यप्रवणित केल्यावर तिची स्थिती बदलते किंवा किंवा वस्तूची विश्राम अवस्था बदलते किंवा वस्तूची गती बदलते, तिला बल म्हणतात.

बल (F) = वस्तुमान (m) × त्वरण (a)

गणना :

दिलेले आहे:

वस्तूचे वस्तुमान (m) = 20 g = 20/1000 = 0.02 kg

त्वरण (a) = 5 cm/s2 = 5/100 = 0.05 m/s2

बल (F) = वस्तुमान (m) × त्वरण (a) = 0.02 × 0.05 = 1.0 × 10-3 N

म्हणून पर्याय 3 योग्य आहे.

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