An electric circular saw is designed to reach its final angular speed, starting from rest, in 1.16 s. Its average angular acceleration is 375 rad/s2. Obtain its final angular speed.

Answer 1

wf=wi+a*t

solve for wf

Answer 2

a = (Vf - Vo) / t = 3.75 rad/s^2,
(Vf - 0) / 1.16 = 3.75,
Vf / 1.16 = 3.75,
Vf = 1.16 * 3.75 = 4.35 rad/s.

Answer 3

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