Question

A shaft is turning at 67.0 rad/s at time zero. Thereafter, its angular acceleration is given by the following equation...

A shaft is turning at 67.0 rad/s at time zero. Thereafter, its angular acceleration is given by the following equation, where t is the elapsed time.

α = -10.0 rad/s2 - (4.50 rad/s3)t

(a) Find its angular speed at t = 2.40 s.
rad/s
(b) How far does it turn in these 2.40 seconds?
rad

0 0
Add a comment Improve this question Transcribed image text
Answer #1

home study questions and answers science / physics a shaft is turning at 67.0 rad/s at time zero. Your question has been answ

Add a comment
Know the answer?
Add Answer to:
A shaft is turning at 67.0 rad/s at time zero. Thereafter, its angular acceleration is given by the following equation...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A shaft is turning at 65 rad/s at time t=0. Its angular acceleration is given by a = -10 rad/s^2...

    A shaft is turning at 65 rad/s at time t=0. Thereafter, its angular acceleration is given byα = -10 rad/s2 - 5t rad/s3 ,where t is the elapsed time. (a) Find its angular speed at t=3 s. (b) How far does it turn in these 3s?

  • 3. At t-0, angular velocity of a wheel is 24 rad/s, and its angular acceleration is...

    3. At t-0, angular velocity of a wheel is 24 rad/s, and its angular acceleration is 30 rad/s. (i) How much angle does the wheel turn through after 2 seconds of rotation? (ii) At t-2 sec., the wheel suddenly begins to undergo angular deceleration (negative angular acceleration) of 8.16 rad/s'. What additional time from t -2 secs, does it take the wheel to come to a stop? Hint: Use appropriate rotational kinematic equation to answer different parts of the question....

  • The initial angular velocity and the angular acceleration of four rotating objects at the same instant...

    The initial angular velocity and the angular acceleration of four rotating objects at the same instant in time are listed in the table that follows. For each of the objects (a), (b), (c), and (d), determine the final angular speed after an elapsed time of 5 s. Initial angular velocity ω0 Angular acceleration α (a) +12.0 rad/s +2.0 rad/s2 (b) +12.0 rad/s -2.0 rad/s2 (c) -12.0 rad/s +2.0 rad/s2 (d) -12.0 rad/s -2.0 rad/s2

  • The initial angular velocity and the angular acceleration of four rotating objects at the same instant...

    The initial angular velocity and the angular acceleration of four rotating objects at the same instant in time are listed in the table that follows. For each of the objects (a), (b), (c), and (d), determine the final angular speed after an elapsed time of 5 s. Initial angular velocity ω0 Angular acceleration α (a) +30.0 rad/s +5.0 rad/s2 (b) +30.0 rad/s -5.0 rad/s2 (c) -30.0 rad/s +5.0 rad/s2 (d) -30.0 rad/s -5.0 rad/s2

  • During a certain time interval, the angular position of a swinging door is described by θ...

    During a certain time interval, the angular position of a swinging door is described by θ = 5.01 + 10.9t + 1.98t2, where θ is in radians and t is in seconds. Determine the angular position, angular speed, and angular acceleration of the door at the following times. (a) t = 0 θ = rad ω = rad/s α = rad/s2 (b) t = 3.02 s θ = rad ω = rad/s α = rad/s2

  • At t=0 a grinding wheel has an angular velocity of 24.0 rad/s . It has a...

    At t=0 a grinding wheel has an angular velocity of 24.0 rad/s . It has a constant angular acceleration of 27.0 rad/s2 until a circuit breaker trips at time t = 2.40 s . From then on, it turns through an angle 430 rad as it coasts to a stop at constant angular acceleration. A. Through what total angle did the wheel turn between t=0 and the time it stopped? B.  At what time did it stop? C. What was its...

  • The initial angular velocity and the angular acceleration of four rotating objects at the same instant...

    The initial angular velocity and the angular acceleration of four rotating objects at the same instant in time are listed in the table that follows. For each of the objects (a), (b), (c), and (d), determine the final angular speed after an elapsed time of 2.2 s. Initial angular velocity ω0 Angular acceleration α (a) +15 rad/s +5.0 rad/s2 (b) +15 rad/s -5.0 rad/s2 (c) -15 rad/s +5.0 rad/s2 (d) -15 rad/s -5.0 rad/s2 (a) Final angular speed = ---Select---...

  • The angular position of one of the arms of a spinning ice skater for 15 s...

    The angular position of one of the arms of a spinning ice skater for 15 s is described by the function 1000 / (t 5) rad for 0 ts 15 where t is the elapsed time in seconds. rad s2 The angular acceleration at t = 15 s is

  • zcomplete the sulution  please During a certain time interval, the angular position of a swinging door is...

    zcomplete the sulution  please During a certain time interval, the angular position of a swinging door is described by 0 = 4.90 + 9.8t + 2.05t2, where 0 is in radians and t is in seconds. Determine the angular position, angular speed, and angular acceleration of the door at the following times. (a) t = 0 0 = 4.90 rad W = 9.8 rad/s = 4.2 Calculus methods can be used to determine the velocity and acceleration from O(t). rad/s2 α...

  • A flywheel has angular acceleration az(t) = 8.65 rad/s2 - (2.35 rad/s2 )t , where counterclockwise...

    A flywheel has angular acceleration az(t) = 8.65 rad/s2 - (2.35 rad/s2 )t , where counterclockwise rotation is positive. If the flywheel is at rest at t = 0, what is its angular velocity at 5.25 s? Express your answer with the appropriate units. Through what angle (in radians) does the flywheel turn in the time interval from t = 0 to 5.25 s? Express your answer with the appropriate units.

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT