Which of the following leads to the conclusion that momentum is conserved?

proportionality between weight and mass

equal magnitude and opposite direction of action-reaction pairs of forces

equivalence principle

relation between translation and rotation of an object that is rolling

Question

Which of the following leads to the conclusion that momentum is conserved?

proportionality between weight and mass

equal magnitude and opposite direction of action-reaction pairs of forces

equivalence principle

relation between translation and rotation of an object that is rolling

anonymous · Answer

sooo...do you understand the question?

anonymous · Answer

not really... Proportionality between weight and mass would make sense but I'm really not sure sorry :/

anonymous · Answer

dnt worry ...its cool..thanks though :)

anonymous · Answer

;)

turingtest · Answer

The answer is
 'equal magnitude and opposite direction of action-reaction pairs of forces'
as a matter of fact, Newton's second law$$F=ma=m\frac{dv}{dt}$$is better stated as$$F=\frac{dp}{dt}$$where p is momentum. This makes Newtons third law become$$F_a=-F_r\to\frac{dp_1}{dt}=-\frac{dp_2}{dt}$$which suggests conservation of momentum.