Question

Two objects of different masses placed in space and separated by a certain distance, attract each other by a force of gravitation 100 mega N. Find the force of gravitation between them, when mass of the first body increases to 2 times, that of the second decreases to 1/4 times and the distance between
their centres is halved.​

Answer 1

Answer:

below

Explanation: ) force between 2 object= 100 mega N

The force of attraction  is G*M1*M2/R^2   (i)

After the mass of the first body increases to 2 times, that of the second decreases to 1/4 times and the distance between their centres is halved.

The force of attraction= G*2m1*1/4m2/(r/2)^2  (ii)

Now to find force we need to divide (i) by (ii)

= G*m1*m2/r^2 / G*2m1*1/4m2/(r/2)^2  = 1:2

Now the force of attraction will be 50 mega N..

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Answer 2

Answer:

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