Dr. A. P. J. Abdul Kalam played a major role in developing Indian missiles like Agni and Prithvi. Which…

Dr. A. P. J. Abdul Kalam played a major role in developing Indian missiles like Agni and Prithvi. Which fundamental principle of motion explains how a rocket moves forward during a launch?
  1. An object floats when displaced water equals its weight
  2. For every action, there is an equal and opposite reaction
  3. Energy can neither be created nor destroyed
  4. Heat always flows from a hot body to a cold body

Solution

Rockets operate on Newton's Third Law of Motion, where hot exhaust gases expelled downward (action) create an upward thrust (reaction).

Asked in: Homi Bhabha Practice

Practice more General Knowledge questions on Aicharya