INTRODUCTION

Introduction –

•  In the physical world, one of the most common phenomena is motion.

•  The branch of Physics, which deals with the behavior of moving objects, is known as mechanics.

• Mechanics is further divided into two sections namely Kinematics and Dynamics.

• Kinematics deals with the study of motion without taking into account the cause of motion.

• Dynamics is concerned with the cause of motion, namely force.

Motion and Rest -

• An object is said to be in motion if it changes its position with respect to its surroundings in a given time.

• An object is said to be at rest if it does not change its position with respect to its surroundings.