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##### Asked by: Ilian Wrabel

science physics# What does angular acceleration equal?

Last Updated: 14th February, 2020

**angular**velocity, dividedby the change in time. The average

**angular acceleration**isthe change in the

**angular**velocity, divided by the change intime. The

**angular acceleration**is a vector that points in adirection along the rotation axis. The unit of

**angularacceleration**is radians/s

^{2}.

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Similarly one may ask, is angular acceleration and centripetal acceleration the same thing?

2) Because **angular acceleration** applies to thewhole rigid object, however, tangential **acceleration andcentripetal acceleration** are for a specific radius. No**centripetal acceleration** means the object is not moving in acircle. o **Centripetal acceleration** results from the changein direction of the tangential velocity.

Likewise, does angular acceleration change with radius? Equations. The linear velocity is proportional to the**angular** velocity and the **radius**. The average**angular acceleration** is the **change** in **angular**velocity divided by time. The tangential **acceleration** isproportional to the **angular acceleration** and the**radius**.

In this regard, what is the relation between angular velocity and angular acceleration?

The **angular acceleration** is also known as**rotational acceleration**. It is a quantitative expression ofthe change in **angular velocity** per unit time. The**acceleration** vector, magnitude or length is directlyproportional to the rate of change in **angularvelocity**.

What causes angular acceleration?

Torque is a measure of the ability of a force to**cause** rotation. Just as a net force **causesacceleration**, a net torque **causes angular acceleration**,so you can think of torque as the **angular** equivalent offorce. Torque brings forces into the rotational world.