If that's the word for word exact problem statement, it's very poorly worded. You shouldn't have to guess what they mean. (Please double check!)Dave_1984 said:Hi, Yes that is the complete question so I guess it will start from rest if they are asking for the acceleration?
That formula relates angular speed (ω) to tangential speed (v).As for what I have done so far - mainly just looking at it. I know for angular accelaration I need to use w=v/r If I'm honest I am not sure how to get v?
Not usually. Angular acceleration refers to the rate at which the angular velocity is changing. (And if the angular velocity is constant...)MrB8rPhysics said:The term angular acceleration refers to the fact that its constantly changing direction, and hence velocity (which is a vector).
I think you mean s = ut + 1/2at2 (you left out the square). You can let s, u, and a represent angular quantities.Dave_1984 said:I could use s = ut + 1/2at if it starts at rest that will give me the acceleration in ms-2
Angular speed has units of rad/s; angular acceleration has units of rad/s2.I have read that angular acceleration is measured it rad/s?
That would be a calculation of average speed. (What would be the final speed?)2 pi r= 9.42m
9.42 / 3 = 3.14ms-1
Angular acceleration is the rate at which an object's angular velocity changes over time. It is calculated by dividing the change in angular velocity by the change in time.
Angular velocity is a measure of how fast an object is rotating around an axis, whereas linear velocity is a measure of how fast an object is moving in a straight line. Angular velocity is measured in radians per second, while linear velocity is measured in meters per second.
Angular acceleration and angular velocity can be measured using various instruments such as an accelerometer, gyroscope, or tachometer. These devices can track the changes in an object's rotational motion and provide numerical values for angular acceleration and angular velocity.
The direction of angular acceleration is always perpendicular to the direction of angular velocity. This means that if an object is rotating clockwise (positive angular velocity), the angular acceleration will be in the opposite direction (negative angular acceleration) and vice versa.
Torque is the force that causes an object to rotate. The relationship between angular acceleration and torque can be described by the equation τ = Iα, where τ is the torque, I is the moment of inertia, and α is the angular acceleration. This means that the greater the torque applied to an object, the greater its angular acceleration will be.