In fact there is gravity between you and every mass around youyour desk your book and your pen. Use the following as necessary. - 667 x 10¹¹ Nm²kg².
Newtons universal law of gravitation says that the force acting upon and therefore the acceleration of an object toward Earth should be inversely proportional to the square of its distance from the center of Earth.
Universal gravitation also means that while Earth exerts a pull on you you exert a pull on Earth. F m 1 m 2 2r. Formulas that you must memorize. M kg and s m³kgs².