Question: A ceiling fan with 80-cm-diameter blades is turning at 60 rpm. Suppose the fan coasts to a stop 25 s after being turned off. a.

A ceiling fan with 80-cm-diameter blades is turning at 60 rpm. Suppose the fan coasts to a stop 25 s after being turned off.
a. What is the speed of the tip of a blade 10 s after the fan is turned off?
b. Through how many revolutions does the fan turn while stopping?

Step by Step Solution

★★★★★

3.37 Rating (153 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Model Assume constant angular acceleration Visualize a Solve The initial ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Scientists and Engineers Questions!

A ceiling fan of radius 45 cm runs at 90 rev/min. How far does the tip of the fan blade travel in 1 hour?

A ceiling fan has four blades, each with a mass of 0.35 kg and a length of 60 cm. Model each blade as a rod connected to the fan axle at one end. When the fan is turned on, it takes 4.35 s for the...

Multiple-Concept Example 7 explores the approach taken in problems such as this one. The blades of a ceiling fan have a radius of 0.380 m and are rotating about a fixed axis with an angular velocity...

A ceiling fan with 8 0 - c m - diameter blades is turning at 6 8 rpm . Suppose the fan coasts to a stop 2 5 s after being turned off. Part A What is the speed of the tip of a blade 1 0 s after the...

A ceiling fan with 8 5 - cmcm - diameter blades is turning at 6 4 rpmrpm . Suppose the fan coasts to a stop 2 6 ss after being turned off. Part A What is the speed of the tip of a blade 1 0 ss after...

Part A A ceiling fan with 9 0 - c m - diameter blades is turning at 6 6 r p m . Suppose the fan coasts to a stop 2 7 s after being turned off. What is the speed of the tip of a blade 1 0 s after the...

Problem 12.2 Part A An 8.0-cm-diameter hard disk spinning at 7200 rpm can stop in 13 revolutions. What is the magnitude of the angular acceleration? Express your answer in radians per second squared....

A ceiling fan with 8 5 - cm - diameter blades is turning at 6 0 rpm . Suppose the fan coasts to a stop 2 8 s after being turned off. Part A What is the speed of the tip of a blade 1 0 s after the fan...

A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration? (1.6 rad/s?) A ceiling fan is turned on and reaches an angular...

Question1 of 20 > ! 5 E View Policies Current Attempt in Progress A car is moving along a horizontal road at a constant velocity that is directed 45" south of east. What is the direction of the...

The jackknife is a general technique for reducing bias in an estimator (Quenouille, 1956). A one-step jackknife estimator is defined as follows. Let X1,..., Xn be a random sample, and let Tn =...

What four factors were provided by FDICIA as guidelines to assist the FDIC in the establishment of risk-based deposit insurance premiums? What happened to the level of deposit insurance premiums in...

Are there any probability calculations that would be appropriate for rating an investment service? Why or why not?

A random sample of fifteen financial analysts' forecasts of next year's earnings per share for General Motors Corporation was taken. The sample standard deviation was 5.880. Find a 95% confidence...

Which has a more direct influence on the loudness of a sound wave: the displacement amplitude or the pressure amplitude? Explain.

If the pressure amplitude of a sound wave is halved, by what factor does the intensity of the wave decrease? By what factor must the pressure amplitude of a sound wave be increased in order to...

Does the sound intensity level b obey the inverse-square law? Why?

You are in charge of conducting an analysis for your organization to see if there is a difference between manager and individual contributor employee satisfaction. Your coworker has already collected...

b. What percentage of 18 to 24 year olds smoke? [3 marks] ANSWER (Percentage, 2 decimal places): c. If a student is 25 years or older, what is the probability he/she is a non-smoker? [3] ANSWER (4...

Acort Industries has 10 million shares outstanding and a current share price of $40 per share. It also has long-term debt outstanding. This debt is risk free, is four years away from maturity, has...