## anonymous 4 years ago 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

1. anonymous

sooo...do you understand the question?

2. anonymous

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

3. anonymous

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

4. anonymous

;)

5. TuringTest

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.