A wind turbine is initially spinning at a constant angular speed.As the wind's strength gradually increases, the turbine experiencesa constant angular acceleration of 0.130 rad/s2. After making 2828revolutions, its angular speed is 136 rad/s.
(a) What is the initial angular velocity of the turbine?
? rad/s

(b) How much time elapses while the turbine is speeding up?
? s

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1 Aug 2019

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A disk rotates with constant angular acceleration. The initialangular speed of the disk is 2p rad/s. After the disk rotatesthrough 2p radians, the angular speed is 19p rad/s.
(a) What is the magnitude of the angular acceleration?
1 rad/s2
(b) How much time did it take for the disk to rotate through 2pradians?
2 s
(c) What is the tangential acceleration of a point located at adistance of 8 cm from the center of the disk?
3 m/s2

A round wheel with an initial angular speed of 6.58 rad/s rotates12.7 revolutions as it is slowing down and stopping. What was theangular acceleration of the wheel? (Consider speeding up postiveand slowing down negative.)
. rad/s2

(b) How much time did this wheel rotate before stopping?

hi,

i have 5 questions i need the
complete solutions with their final results. is there anyonecouldhelp
me, i would appreciate that.

1)
2600 rev/min is equivalent to which of the following?
1. 273 rad/s
2. 43.3 rad/s
3. 2600 rad/s
4. 60 rad/s

2)

A 0.30-m-radius automobile tire rotates how many rad afterstartingfrom rest and accelerating at a constant 2.0 rad/s2 over a5.0-sinterval?

3)

A Ferris wheel starts at rest and builds up to a final angularspeedof 0.70 rad/s while rotating through an angular displacementof 4.9rad. What is its average angular acceleration?

4)

A Ferris wheel, rotating initially at an angular speed of0.50rad/s, accelerates over a 7.0-s interval at a rate of 0.040rad/s2.What is its angular speed after this 7-s interval?

5)

A point on the rim of a 0.30-m-radius rotating wheel hasatangential speed of 4.0 m/s. What is the tangential speed ofapoint 0.20 m from the center of the same wheel?

thank you in advance

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