Posted by **anon** on Saturday, March 12, 2011 at 5:13pm.

A line rotates in a horizontal plane according to the equation theta=2t^3 -6t,where theta is the angular position of the rotating line, in radians ,and t is the time,in seconds. Determine the angular acceleration when t=2sec.

A.) 6 radians per sec^2

B.) 12 radians per sec^2

C.) 18 radians per sec^2

D.) 24 radians per sec^2 << my choice.

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