Gtwo balls of equal size are dropped from the same height from the roof of a building. the mass of ball a is twice that of ball b, m subscript a equals 2 m subscript b. when the two balls reach the ground, how do their kinetic energies compare? group of answer choices when reaching the ground, latex: ke_a=\sqrt{2}ke_b k e a = 2 k e b when reaching the ground, latex: ke_a=\frac{1}{2}ke_b k e a = 1 2 k e b when reaching the ground, latex: ke_a=2ke_b k e a = 2 k e b when reaching the ground, latex: ke_a=ke_b k e a = k e b when reaching the ground, latex: ke_a=4ke_b