Question

The opposite diagram shows two small planets of mass m each, and one larger planet of mass 4m, aligned and separated by distance d between each other.

Which planet (or planets) is affected by the greatest net gravitational force?

Answer 1

c-160

Step-by-step explanation:

since
`(G.M.m)/(R^(2) )`=20 N

so the Equation after doubling the the mass of each and object and dividing the radius by 2 (note that the 2 must be also under the power)

so the equation will be
`(G.2M.2m)/((1 )/(4)R^(2) )` which equals 8*
`(G.M.m)/(R^(2) )`, so the force will be 8*20 =160