Understand the third equation of motion
The question is third equation of motion not third law of motion.
Every action has equal and opposite reaction is called third equation of motion.
To every action there is equal and opposite reaction
Every action has an equal an opp reaction and these force act on two different body
Every action their is an equal n opposite reaction
For every action there is equal and opposite reaction force.
Simple every action has equal and opposite reaction like when a gunman fire from gun then it get jerk because of third equation bullet get forward and pull backward
To every action their is an equal reaction
The third equation of motion gives the equation :-