Respuesta :

Answer:

gravity is changed by a factor of 10/16

Explanation:

gravitational force =  m1 m2 G / r^2    now change the m1  and  r

                               = 10 m1 m2 G/ (4 r)^2

                               = 10 /16  m1 m2 G / r^2

10 /16  the earth's gravity