Physics

Problem

Identify the correct expression for the magnitude of gravitational field intensity

g

at a distance

r

from an isolated point mass

M

. a)

g = 2G\dfrac{M}{r^{2}}

g = G\dfrac{M}{r^{2}}

g = -\,G\dfrac{M}{r^{2}}

g = G\dfrac{M+m}{r^{2}}