What is the difference between Momentum and Inertia?

The critical difference between inertia and momentum are two concepts in studying the movement of solid bodies. Momentum and inertia are helpful in describing the current state of an object, and both are related to the mass of the item. Momentum is a vector, and it is the product of velocity and the inertial mass of the object. Newton's second law mainly focuses on momentum. It is force = mass times acceleration. Inertia, on the other hand, is the measurement of how lazy the system is. The inertia of a system provides us with a clue as to how difficult it is to change the system's velocity, acceleration, and direction. The inertia of an item tends to be infinity. It is when the speed of the object reaches the speed of light.

Momentum and inertia are two terms in physics. The term momentum means the product of mass and velocity. It refers to the tendency of an object or body to maintain its inertial motion. Since it has a magnitude and a direction, the momentum of a body is similar to its velocity. On the other hand, the term inertia describes the property of a body that resists a change to its uniform motion. One of the factors that can affect the uniform motion of a body is the weight. The term inertia is an important part of Newton’s first law of motion. The term momentum is peculiar to Newton’s second law of motion. The momentum of an object cannot be stopped unless an equal force is applied to stop it. On the contrary, inertia considers the friction and the gravity acting against an object. It means, unlike momentum that can’t be stopped, inertia can be stopped by gravity and friction.

Inertia will describe the object’s resistance to the notion that it would need to go through. For example, if an object is moving towards the right, a person will try to move towards the opposite way. Sometimes, the object would try to become motionless so that it will not move at all. When you say momentum, you are focusing on how much motion the object is currently experiencing. This means that momentum is the force of your current speed or this will be focused on how fast your current movement is. When you say inertia, this is responsible for making sure that you will keep going.