Two objects are traveling through empty space with the same kinetic energy. Object P has eight times the mass of object Q. How do their speeds compare; i. e., what is

the kind of relationship between atmospheric  density and altitude is inverse relationship. this means a surge in either will cut the other factor. density is mass per unit volume, it is hard to compute with only altitude 1,291 kilometers given. also, we could also use temperature and pressure to resolve density but they are not delivered.