Question

a fire man turns on his hose and is knocked backwards, is this newtons 1st law 2nd law or third

Answer 1

This situation can be explained by Newton's Third Law of Motion. According to Newton's third law, for every action, there is an equal and opposite reaction. When the fireman turns on the hose, the water exerts a force pushing in one direction, and as a result, an equal and opposite force is exerted on the fireman, causing him to be knocked backwards.