When it is 125 m above the ground, a rocket traveling vertically upward at a constant 7.60 m/s relative to the ground launches a secondary rocket at a speed of 13.0 m/s at an angle of 46.0 ∘ above the horizontal, both quantities being measured by an observer sitting in the rocket. air resistance should be ignored. just as the secondary rocket is launched, what are the horizontal and vertical components of its velocity relative to the astronaut sitting in the rocket?