Question

How to derive newton's third law of motion from second law??????

Answer 1

Answer:

Hope this helps you

Explanation:

In the absence of external force, the rate of change of momentum must be zero i.e., d/dt (pB+pA) must be zero. In the absence of external force, the rate of change of momentum must be zero i.e., d/dt (pB+pA) must be zero. This is nothing but Newton's third law of motion.