Angular,rotational, translational and tangential velocity

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Angular and rotational velocity refer to the same concept, typically measured in degrees or radians per second, while rotational velocity is often expressed in revolutions per minute (rpm). Translational velocity is the standard measure of velocity in meters per second, representing linear motion. Tangential velocity is the component of translational velocity that acts in the tangential direction of a rotating object. For a rigid body rotating around a fixed axis, the tangential velocity at a distance r from the axis is calculated as ωr, where ω is the angular velocity. Understanding these distinctions is crucial for grasping the dynamics of rotating systems.
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can someone please explain me the differences between angular, rotational, translational and tangential vecoity pls. I am struggling to understand how their differ from each other and how they are caluclated.
 
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hi paperboy! :smile:

angular and rotational velocity are different names for the same thing

the usual name is angular velocity, measured in degrees per second or radians per second

it's called rotational velocity when it's measured in revolutions (ie "rotations") per second or, more usually, per minute (r.p.m.), see http://en.wikipedia.org/wiki/Angular_velocity" …
When measured in cycles or rotations per unit time (e.g. revolutions per minute), it is often called the rotational velocity and its magnitude the rotational speed

translational velocity just means ordinary velocity, measured in metres per second

tangential velocity is the component of ordinary (translational) velocity in the tangential direction

for example, if a rigid body is rotating about a fixed axis, with an angular velocity of ω radians per second, then any point at distance r metres from the axis will have a purely tangential velocity, of ωr metres per second
 
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thank you very much for the detailed answer!
 

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