Physics: Momentum Definition and Formula

Momentum Definition

• Momentum is the product of an object's mass and velocity
• Represented by the symbol p and measured in kg·m/s
• Momentum is a vector quantity, meaning it has both magnitude and direction

Momentum Formula

• p = m × v
• Where p is the momentum, m is the mass, and v is the velocity of the object

Characteristics of Momentum

• Momentum is a conserved quantity in closed systems, meaning it remains constant unless acted upon by an external force
• The more massive an object is, the more momentum it will have at a given velocity
• The faster an object is moving, the more momentum it will have at a given mass

Types of Momentum

• Linear Momentum: the product of an object's mass and velocity in a straight line
• Angular Momentum: the product of an object's moment of inertia, angular velocity, and radius from the axis of rotation

Momentum in Different Frames of Reference

• Galilean Relativity: momentum is not conserved when viewed from different inertial frames of reference
• Special Relativity: momentum is conserved when viewed from different inertial frames of reference, but the formula for relativistic momentum is different from the classical formula

Applications of Momentum

• Collision Physics: momentum is used to analyze and predict the outcomes of collisions between objects
• Rocket Propulsion: momentum is used to calculate the efficiency and efficiency of rocket propulsion systems
• Sports: momentum is used to analyze and improve athletic performance, particularly in sports involving collisions or rapid changes in direction

Momentum Definition

• Momentum is the product of an object's mass and velocity, represented by the symbol p and measured in kg·m/s
• Momentum is a vector quantity, having both magnitude and direction

Momentum Formula and Characteristics

• Momentum is calculated using the formula p = m × v, where p is momentum, m is mass, and v is velocity
• Momentum is a conserved quantity in closed systems, remaining constant unless acted upon by an external force
• Mass and velocity affect momentum, with more massive and faster-moving objects having more momentum

Types of Momentum

• Linear momentum is the product of an object's mass and velocity in a straight line
• Angular momentum is the product of an object's moment of inertia, angular velocity, and radius from the axis of rotation

Momentum in Different Frames of Reference

• In Galilean Relativity, momentum is not conserved when viewed from different inertial frames of reference
• In Special Relativity, momentum is conserved when viewed from different inertial frames of reference, but with a different formula for relativistic momentum

Applications of Momentum

• Momentum is used in collision physics to analyze and predict outcomes of collisions between objects
• Momentum is used in rocket propulsion to calculate efficiency and performance of rocket systems
• Momentum is used in sports to analyze and improve athletic performance, particularly in sports involving collisions or rapid changes in direction