Assuming that the air friction is responsible for up to 15% momentum or energy loss, discuss how your results have (roughly) confirm or contradict the conservation law for elastic collisions if there is no air friction. Do different mass configurations show the same physics of conservation (or non-conservation)

Nucleus for question ome

Special care would be an answer

A). redi wish i´ve

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.