Posted by **Allie** on Thursday, October 6, 2011 at 11:00pm.

A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.1 104 rev/min.

(a) Find the drill's angular acceleration.

rad/s2

(b) Determine the angle (in radians) through which the drill rotates during this period.

rad

- Physics -
**Anonymous**, Sunday, December 4, 2011 at 1:42pm
18.7

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