A radio controlled car rolls 10 m south then reverses and rolls 8 m north . The car has traveled a distance of 28 m and has a displacement of _ m south

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.