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प्रश्न
Diagram alongside shows a heavy roller with its axle at point O. It is to be pulled on the pavement XY by applying minimum possible force. Copy the diagram and mark on it the point P and the direction in which the minimum possible force is applied.
आकृति
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उत्तर
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
