The parking brake on a 1000 kg Cadillac has failed, and it is rolling slowly at 1.00 mph, towards a group of small children. Seeing the situation you realize you have just enough time to drive your 2000 kg Volkswagon head on into the Cdillac and save the children. With what speed should you impact the Cadillac to bring it to a halt?

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..