- #1
BrainMan
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Homework Statement
A turntable moves from rest to an angular speed of 45 rev/min in 1.5 s. What is its average angular acceleration?
Homework Equations
ω = ωo + [itex]\alpha[/itex]t
The Attempt at a Solution
I first converted 45 to radians by multiplying it by pi
45(3.14152654)/180 = .79 rad
then I plugged it into the above equation
.79 = α(1.5)
α = .53 r/s2
The actual answer is pi r/s2