A launching pad with a spaceship is moving along a circular orbit of the moon, whose radius `R` is triple that of moon `Rm`. The ship leaves the launching pad with a relative velocity equal to the launching pad's initial orbital velocity `vec(v)_(0)` and the launching pad then falls to the moon. Determine the angle `theta` with the horizontal at which the launching pad crashes into the surface it its mass is twice that of the spaceship `m`.