A flywheel has a constant angular deceleration of -1.51 rad/s2. (a) Find the angle through which the flywheel turns as it comes to rest from an angular speed of 205 rad/s. (b) Find the time required for the flywheel to come to rest.
Can someone please explain how to do this!
Can someone please explain how to do this!
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α = -1.52 rad/s²
ωo = 205 rad/s
(b) Angular speed at rest = 0
ωt= ωo + α*t
0 = 205 - 1.52*t
t = 205/1.52 sec= 135 sec.
time required for the flywheel to come to rest = 135 s.
(a) φ = ωo*t + 0.5 α t²
= 205*135 - 0.5*1.52*135²
= 27675 - 13851
= 13824 rad.
Angle through which the flywheel turns as it comes to rest = 13824 rad
ωo = 205 rad/s
(b) Angular speed at rest = 0
ωt= ωo + α*t
0 = 205 - 1.52*t
t = 205/1.52 sec= 135 sec.
time required for the flywheel to come to rest = 135 s.
(a) φ = ωo*t + 0.5 α t²
= 205*135 - 0.5*1.52*135²
= 27675 - 13851
= 13824 rad.
Angle through which the flywheel turns as it comes to rest = 13824 rad