the gravitational force between two spheres is x when distsnce between their centre is y. what will be the new force if the separation made is 3y
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If r is the distance between the two particles, then F=Gm2/r2
If the particle's move in opposite directions, starting from rest, the distance between them at an instant of time t is 2(1/2)at2=at2
The new distance between the particles at 3 secs will be s=1+1(9)=10 m
The new gravitational force will be F′=Gm2/100=F/100
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