Lecture Notes on Linear Momentum, Impulse, and Free Body Diagrams

Vocabulary flashcards based on lecture notes covering linear momentum, impulse, conservation of linear momentum, and free body diagrams.

Linear Momentum

The product of a body's mass and its linear velocity: p = mv

Newton's Second Law (Momentum Form)

The time rate of change of linear momentum of a body is equal to the resultant force acting on the body and is in the direction of that force: F = dp/dt

Impulse

The net effect of force acting over a short time interval: Impulse = FΔt

Impulse-Momentum Theorem

Impulse is equal to the change in momentum: FΔt = Δ(mv)

Average Force (Impulse)

When a variable force acts for a short time, impulse is the product of the average force and the time period: Impulse = FavΔt

Principle of Conservation of Linear Momentum

If a system is isolated (no net external force), the total linear momentum of the system remains constant.

Free Body Diagram (FBD)

A graphical illustration used to visualize applied forces, resulting reactions, and movements of a body in a steady state condition.