Experts pls answer these questions...

Solution : 

1)  1 kg weight = gravitational pull on mass of 1kg = 1xg = 1x10 = 10 N
                                                               ( since g = 10 m/s2)
2) Archemedes Principle establishes that relation. According to this principle, any body fully or partially submerged in water will experience an upward force whose magnitude will be equal to weight of fluid displaced by that body.

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