Physics · Work, Energy and Power
एक नियत बल द्वारा किया गया कार्य शून्य होता है यदि:
- 1विस्थापन शून्य हो या बल के लंबवत हो✓
- 2बल परिवर्ती हो
- 3बल बहुत अधिक हो
- 4विस्थापन बहुत कम हो
सही उत्तर देखें
विस्थापन शून्य हो या बल के लंबवत हो
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