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Question

The gravitational force between two identical objects at a separation of 1 m is 0.0667 mg wt. The masses of the objects are:
(G=6.67×1011Nm2/Kg2 and g=10m/s2)

  1. 200kg, 200kg
  2. 300kg, 300kg
  3. 100kg, 100 kg
  4. 400kg, 400kg

A
100kg, 100 kg
B
400kg, 400kg
C
300kg, 300kg
D
200kg, 200kg
Solution
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The correct option is B 100kg, 100 kg
Given : F=0.0667 mg wt =0.0667×106×10 N , r=1 m
Using the expression: F=Gmmr2

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