How Many Revolutions Does a Centrifuge Make in 240 Seconds?

[physicsma1391]

[SOLVED] Centrifuge Revolutions?

Homework Statement

A centrifuge accelerate from rest to 15,000 rpm in 240s. Through how many revolutions did it turn in this time?

Homework Equations

am i approaching this problem correctly?

The Attempt at a Solution

15000rev/m (1m/60s) (240s) = 60000 rev

 

[hage567]

It is accelerating though. What you have calculated is for a constant angular velocity. What is the definition of angular acceleration? If you know that equation you can solve this problem. Don't forget to convert into radians where necessary.