Answer to Question #43482 in Mechanics | Relativity for fatimah

Question

if the gravitational force between two objects is proportional to 1/R (and not to 1/R^2) where R is the separation between them, then particle in circular orbit under such force would have its orbital speed v proportional to?
OPTIONS
a)1/R^2
b)R
C)R^1
d)1/R