Physics

closed curve in a plane

• joints in any point

• joints in any 2 points that passes its center

A line segment that joins any two points on the circle

distance in any 2 points on the circumference

rigid body rotate about fixed axis

Formula: Δθ = θf - θi  

combining angular displacement and time

Formula: ω = Δθ / Δt  

cause of changing any angular velocity 

Formula:  α = Δω / Δt  

linear speed of an object moving along a circular path 

Formula: v = rω  

component of acceleration that changes the speed 

Formula: aₜ = rα