Question

If the distance between two masses be increased by a factor of 6 by what factor would the mass of them hence to be altered to maintain the same gravitational force ?

Answer 1

Hence, if the distance is increased by a factor of 6, we get a factor of 136 . Therefore, the product of the two masses needs to increase by a factor of 36, which we can do by increasing the mass of each object by a factor of 6.