Wednesday

April 16, 2014

April 16, 2014

Posted by **monic** on Wednesday, November 14, 2012 at 11:32pm.

(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 -
**drwls**, Thursday, November 15, 2012 at 6:09am(a) Convert 30,000 rpm to radians per second. Call it w.

w = 52.36 rad/s

Angular acceleration = w/2.5 rad/s^2

(b) Theta = (average angular velocity)*time = (w/2)*2.5 radians.

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