This is a serious question. Why is it you can drop a cat from that height, and it may well survive, but an equal weight dog wouldn't.
Thats an evolutionary factor, cats are more agile and have a more highly developed sense of balance which means that they are more likely to land feet first allowing them to absorb the impact.
Anyway back to the original question the answer is that you couldnt drop the ball in the first place as the pressure of the magma would stop any object from being able to be dropped even if you are able to continue drilling the hole in the first place.
