१. यदि A र B को बिचमा लाग्ने गुरुत्वाकर्षण बल F छ भने B र C को बिचमा लाग्ने गुरुत्वाकर्षण बल F को कति गुणा हुन्छ ? If the given gravitational force between A and B is F where masses are m and 2 m respectively and distance is d . What is the gravitational force between B and C where mases are 2m and 3 m respectively and distance is 2d in terms of F
