A wheel rotating with a constant angular ac-
celeration turns through 21 revolutions during
a 6 s time interval. Its angular velocity at the
end of this interval is 17 rad/s.
What is the angular acceleration of the
wheel? Note that the initial angular veloc-
ity is not zero. Answer in units of rad/s2. it seems easy enough but my answers are way off what am I doing wrong?
celeration turns through 21 revolutions during
a 6 s time interval. Its angular velocity at the
end of this interval is 17 rad/s.
What is the angular acceleration of the
wheel? Note that the initial angular veloc-
ity is not zero. Answer in units of rad/s2. it seems easy enough but my answers are way off what am I doing wrong?
-
17 = wi + α*6
21*(2π) = wi*6 + ½α*6²
Solving simultaneously,
α = -1.6637 rad/sec²
wi = 26.9822 rad/sec
21*(2π) = wi*6 + ½α*6²
Solving simultaneously,
α = -1.6637 rad/sec²
wi = 26.9822 rad/sec