A physics textbook of mass m rests flat on a horizontal table of mass M placed on the ground Let N_(a-b) be the contact Newton's 3 rd law, which of the following is an action reaction pair of forces?

A physics textbook of mass m rests flat on a horizontal table of mass

1.	A physics textbook of mass m rests flat on a horizontal table of mass M placed on the ground Let N_(a-b) be the contact Newton's 3 rd law, which of the following is an action reaction pair of forces?
Answer» mg and `N_("table" RARR "book")` `(m+M)` G and `N_("table" rarr "book")` `N_("ground" rarr "table")` and `Mg+N_("book" rarr "table")` `N_("ground" rarr "table")` and `N_("table" rarr "ground")` ANSWER :D