And put this new asteroid into orbit round the moon. No, I cant see anything that could go wrong. Lets screw with the moon. Maybe we can have 100 foot tides. Or maybe we can place it wrong, and watch as it whirls off into the earth at mach 1000
Won’t be enough mass to screw with the moon or tides. If it entered the earth’s atmosphere it will be a bright fireball and never reach the surface.
If you punched the moon with a 10 miler at 30 miles a second the worst we’d face is a bunch of pretty diffuse re-entrant ejecta bombarding us. They’re talking about something the size of a basket ball.