Inertia

• Inertia

  • The concept of inertia is closely related to motion, it is defined as:The tendency of an object to continue in its state of rest, or in uniform motion unless acted upon by an external force
  • In other words, inertia is an object's resistance to a change in motion 
  • If an object is at rest, it will tend to remain at rest
  • If an object is moving at a constant velocity (constant speed in a straight line), it will continue to do so
• • Inertial mass is the property of an object which describes how difficult it is to change its velocity
  • It is defined as the ratio between the force applied to it and the acceleration it experiences
• • Larger inertial masses will experience small accelerations
  • Smaller inertial masses will experience large accelerations