Question

номер 176 . Решите пожалуйста.

Answer 1

ma=mMG/(R+h)^2=mMG/R^2* (R/(R+h))^2= m*g*(R/(R+h))^2
a=g*(R/(R+h))^2
если h=R/2
a=g*(R/(R+h))^2=g*(R/(R+R/2))^2=g*(1/(1+1/2))^2=g*(2/3)^2=g*4/9=9,81*4/9= 4,36 м/с^2