Finding Acceleration in Circular Kinematics without Degrees or Radians

[rottweiler]

1. I have a circular kinematics question that I am not sure how to solve part of. I have a radius of.27m, and the wheel rotates three full circles a second. The first part of the question asked me to solve for velocity and I got 5.09m/s. I have to find acceleration in m/s^2. I am not allowed to use degrees only radians.



2. The four kinematics equations rearranged for polar coordinates.



3. Part one was ((2*Pi*3*27m)=5.09m/s I am not sure how to proceed with the acceleration[/b

 

[rock.freak667]

Do you know the equation governing centripetal acceleration?

 

[rottweiler]

(V^2)/r but that would make the acceleration 96.0 m/s^2 isn't that a large acceleration?

 

[rock.freak667]

(V^2)/r but that would make the acceleration 96.0 m/s^2 isn't that a large acceleration?

yes that is what it would be, but you must realize that it is making 3 revolutions in 1 second. which is quite fast.

 

[rottweiler]

Thank you so much!