Suppose that an asteroid traveling straight toward the center ofthe earth were to collide with our planet at the equator and buryitself just below the surface. What would have to be the mass ofthis asteroid, in terms of the earth's mass M , for theday to become 26.0% longer than it presently is as a result of thecollision? Assume that the asteroid is very small compared to theearth and that the earth is uniform throughout.
