Recent content by croatia_guy

ok, there are 4 questions in each group and i wasn't in school for a long time, like 3 weeks, and i don't understand anything. A group 1. A 20-kg stone is thrown downwards at 12 m/s from the top of the ESB. The ESB is 450 m high. The force of air friction is 120 N. Find the impact velocity...

Hey guys, next week I'm writing a very important test, so it would really help me if someone could solve the exercises. Here it is: