Third Law of Motion: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Third Law of Motion. Understanding the underlying formula is key to arriving at the correct answer below:

Assertion (A) is false; rockets achieve propulsion by expelling hot gases backward, not by pushing the surrounding air. They work in vacuum. Reason (R) is true, stating Newton's third law. Thus, (A) is false and (R) is true. Option (4) is selected as it correctly identifies (A) as false.