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Railways PYQCBT 2 2017

RRB NTPC · Question 41

A monkey sitting on a branch of a tree suddenly falling down towards the ground is an example of _______.

  1. Law of conservation of energy

  2. Kepler's laws

  3. Newton's third law of motion

  4. Law of conservation of mass

Show answer & explanation

Answer: (A) Law of conservation of energy

Explanation

As the monkey falls, its potential energy is converted into kinetic energy while the total mechanical energy stays the same – an example of the law of conservation of energy.