Question

a turn table was revolving at 33.33 rpm. It was shut off and uniformly slowed down...

a turn table was revolving at 33.33 rpm. It was shut off and uniformly slowed down and stopped in 5.5 seconds. A. what is her angular speed in rad/s b. Throughout how many revolutions did it turn.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

A. Let the angular acceleration is .

Initial angular velocity   .

Final angular velocity =0 rad/s.

  

  

B. Let it turned n revolution.

  

  Throughout it turned 91.6575 revolutions.

  

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
When an old LP turntable was revolving at 33(1/3)rpm, it was shut off and uniformly slowed...
When an old LP turntable was revolving at 33(1/3)rpm, it was shut off and uniformly slowed down and stopped in 5.5 seconds. a) What was the magnitude of its angular acceleration (in rad/s^2) as it slowed down? b) Through how many revolutions did it turn while stopping?
When an old LP turntable was revolving at 33 1/3 rpm, it was shut off and...
When an old LP turntable was revolving at 33 1/3 rpm, it was shut off and uniformly slowed down and stopped in 5.5 seconds. (a) What was the magnitude of its angular acceleration (in rad/s2) as it slowed down? (b) Through how many revolutions did it turn while stopping?
QUESTION 3 An electric fan is turned off, and it slows down from 356 revolutions/s to...
QUESTION 3 An electric fan is turned off, and it slows down from 356 revolutions/s to 80.1 revolutions/s in 4.07 seconds. How many times did the fan blades spin in this time? QUESTION 4 A disk rotates about a fixed axis through its center of mass and perpendicular to the disk. It starts from rest and accelerates uniformly, reaching angular speed ω after 8.44 revolutions. If it continues to accelerated at the same rate, how many more revolutions would it...
An old record completes 0.890 revolutions as it slows down uniformly from 78.0 rpm to 22.8...
An old record completes 0.890 revolutions as it slows down uniformly from 78.0 rpm to 22.8 rpm. What is the magnitude of the angular acceleration of the record, in rad/s2?
A really old phonograph turntable, rotating at 78 rpm, slows down and stops in 30 sec...
A really old phonograph turntable, rotating at 78 rpm, slows down and stops in 30 sec after the motor is turned off. (a) Find its (uniform) angular acceleration. (b) How many revolutions did it make in this time?
An electric fan is turned off, and its angular velocity decreases uniformly from 540 rev/min to...
An electric fan is turned off, and its angular velocity decreases uniformly from 540 rev/min to 220 rev/min in a time interval of length 3.85 s . (a) Find the angular acceleration in revolutions per second per second. (b) Find the number of revolutions made by the fan blades during the time that they are slowing down in part A. (c) How many more seconds are required for the fan to come to rest if the angular acceleration remains constant...
A grinding wheel of radius 20.0 cm is initially spinning with an angular speed of 2.0...
A grinding wheel of radius 20.0 cm is initially spinning with an angular speed of 2.0 rad/s. When the power of the grinder is increased the angular speed increased to 10 rad/s over the next 5.0 s. a. Calculate the avg. angular speed of the grindstone during the 5 seconds. b. Calculate the angular acceleration of the grinding wheel during the 5 seconds. c. How many revolutions does the grindstone turn during the 5 seconds?
At t=0 a grinding wheel has an angular velocity of 21.0 rad/s . It has a...
At t=0 a grinding wheel has an angular velocity of 21.0 rad/s . It has a constant angular acceleration of 33.0 rad/s2 until a circuit breaker trips at time t = 2.40 s . From then on, it turns through an angle 433 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 acceleration as...
An electric fan is turned off, and its angular velocity decreases uniformly from 570 rev/min to...
An electric fan is turned off, and its angular velocity decreases uniformly from 570 rev/min to 250 rev/min in 3.00 s . Find the angular acceleration in rev/s2. Find the number of revolutions made by the motor in the 3.00 s interval. How many more seconds are required for the fan to come to rest if the angular acceleration remains constant at the value calculated in part A?
At time t=0 a grinding wheel has an angular velocity of 29.0 rad/s . It has...
At time t=0 a grinding wheel has an angular velocity of 29.0 rad/s . It has a constant angular acceleration of 26.0 rad/s^2 until a circuit breaker trips at time t = 2.30 s . From then on, the wheel turns through an angle of 431 rad as it coasts to a stop at constant angular deceleration. Part A) Through what total angle did the wheel turn between t=0 and the time it stopped? Part B) At what time does...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT