Hello, I need help on my basic math This is the problem A projectile is launches with 200kg.m/s of momentum and 1000 J of kinetic energy. What is the mass of the projectile. (a) 20 kg This is my math: P = mv so m = P/v m = (200 kg.m/s)/v KE = 1000 J 1000 J = 1/2 mv ^2 1000 J = 1/2 (mv) v 1000 J = 1/2 (200) v v = 10 J IF m = 200/v m= (200 kg.m/s)/ (10 J) m= (200 kg.m/s) / (10 NM) m = (200 kg.m/s) / (10 ma.m) m = (200 kg.m/s) / (10 kg.m/s.m) m = (20/m) WHY IS THAT I HAVE THIS ANSWER?? 20/M? Instead of 20kg?