Question

a body of mass 1 Kg is placed at a distance of 2 metre from another body of mass 10 kg at what distance from the body of 1 kg another body of mass 5 kg should be placed so that the net force of gravitation acting on a body of mass 1 kg is zero

Answer 1

 distance is 2^1/2 or root of two

because 10/2*2(distance is squared)

=5/2 (root two is squared)

so gravitaional force will be same. so the cancel out eachother and net gravitational force will be 0 
 distance is 2^1/2 or root of two

because 10/2*2(distance is squared)

=5/2 (root two is squared)

so gravitaional force will be same. so the cancel out eachother and net gravitational force will be 0