What kind of skccool subject is "umkc"?
And what is your question?
A hunter on a frozen, essentially frictionless pond uses a rifle that shoots 4.20 g bullets at 970 m/s . The mass of the hunter (including his gun) is 69.5 kg , and the hunter holds tight to the gun after firing it.
2 answers
Sorry, typo: not skccool -- school!