anyone know how to do this problem?? Tom has a mass of 65.7 kg and Sally has a mass of 52.9 kg. Tom and Sally are standing 28.7 m apart on a massless dance foor. Sally looks up and she sees Tom. She feels an attraction. If the attraction is gravitation, find its magnitude. Assume both can be replaced by spherical masses and that G=6.67259 x 10^-11 Nm^2/kg^2. Answer in units of N.