A yo-yo moves downward until it reaches the end of its string, where it sleeps. As it

Question:

A yo-yo moves downward until it reaches the end of its string, where it "sleeps." As it sleeps-that is, spins in place-its angular speed decreases from 35 rad/s to 25 rad/s. During this time it completes 120 revolutions.

(a) How much time did it take for the yo-yo to slow from 35 rad/s to 25 rad/s?

(b) How much time does it take for the yo-yo to slow from 25 rad/s to 15 rad/s? Assume a constant angular acceleration as the yo-yo sleeps.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

See More Books

Question Posted: Aug 31, 2017 11:27 AM

See More Questions

A cylinder containing R-134a at 10C, 150 kPa, has an initial volume of 20 L. A piston compresses the R-134a in a reversible, isothermal process until it reaches the saturated vapor state. Calculate...
A 100-kg uniform horizontal disk of radius 5.50 m turns without friction at 2.50 rev/s on a vertical axis through its center, as in Figure P11.46, A feedback mechanism senses the angular speed of the...
A cylinder containing R-134a at 10C, 150 kPa has an initial volume of 20 L. A piston compresses the R-134a in a reversible, isothermal process until it reaches the saturated vapor state....
Suppose the following game is repeated once (that is, played twice in total). Bridget Alex SB (40,40) (70,20) SA SA (20, 70) (30,30) (a) How many strategies does Alex have? (b) In an SPNE, what...
EAR versus APR Two banks in the area offer 30-year, $220,000 mortgages at 7.2 percent and charge a $1,500 loan application fee, however, the application fee charged by Insecurity Bank and Trust is...
Circuit Masters, Inc. (CMI), is presently operating at 80% of capacity and manufacturing 120,000 units of a patented electronic component. The cost structure of the component is as follows: Raw...
What types of products are in greatest demand in emerging markets? lo1
1. What are the communication errors Samuel made? 2. What should Angelique do when she gets the phone call from Penny asking her to come to Dallas to meet with Samuel? 3. Is there anything more...
5 pt Question 4 Several years ago, the Jakobe Company issued a $1,000 par value, non-callable bond that novw has 20 years to maturity and a 7% annual coupon that is paid semiannually. The bond...
Assume an ISP uses three leaky buckets to regulate data received from three customers for transmitting to the Internet. The customers send fixed-size packets (cells). The ISP sends 10 cells per...
A rubber ball with a radius of 3.2 cm rolls along the horizontal surface of a table with a constant linear speed v. When the ball rolls off the edge of the table, it falls 0.66 m to the floor below....
(a) An automobile with tires of radius 32 cm accelerates from 0 to 45 mph in 9.1 s. Find the angular acceleration of the tires. (b) How does your answer to part (a) change if the radius of the tires...
Why is it wrong to use correlates of a concept to measure that concept?
Provide the firm name and web page. Does this firm provide highly specialized skills or generic skills? What client need does this firm specialize in? Which phase in the change lifecycle does the...
Provide a specific prompting strategies for each number (trainer action) it may be pictorial, written, gestural, modeling, material, verbal or manual explain briefly using the hierarchy or prompting...
When Loreen was planning a Caribbean cruise, she decides to purchase all her souvenirs in the Bahamas because the exchange rate would be to her benefit. This means Multiple Choice the currency in the...
Here is a list of phobias. Match each of the phobias to one of the 15 statements following the list. Type the letter attached to each phobia you choose next to each statement. The list below contains...
A B C D E 1 2 3 4 5 6 7 8 9 10 Kevin, a calendar-year taxpayer, utilizes the cash method of accounting for his small business, which provides various consulting expertise to the railroad industry. At...
If a sole trader operating as a florist, purchases a van for 55,000 for business use, paying by cheque, when completing his double entry accounts he will: (a) Credit van account and debit bank...
Which of the ocean zones shown would be home to each of the following organisms: lobster, coral, mussel, porpoise, and dragonfish? For those organisms you identify as living in the pelagic...
In Figure a small circular hole of radius R = 1.80 cm has been cut in the middle of an infinite, flat, non-conducting surface that has uniform charge density = 4.50pC/m2. A z axis, with its origin...
In Figure two large, thin metal plates are parallel and close to each other. On their inner faces, the plates have excess surface charge densities of opposite signs and magnitude 7.00 x 10-22C/m2. In...
Two large metal plates of area 1.0 m2 face each other. They are 5.0 cm apart and have equal but opposite charges on their inner surfaces. If the magnitude E of the electric field between the plates...
Imagine you are an Investor in the Stock Market. Identify three companies in the Korean Stock Market (KOSPI) where you would like to invest. Explain your answer
Domino is 4 0 years old and is married out of community of property with the exclusion of the accrual system to Dolly ( 3 5 ) . They have one child, Domonique, who is 1 1 years old. Domino resigned...
YOU ARE CREATING AN INVESTMENT POLICY STATEMENT FOR JANE DOE General: 60 years old, 3 grown children that are living on their own and supporting themselves. She is in a very low tax rate so we don't...

A yo-yo moves downward until it reaches the end of its string, where it sleeps. As it

Question:

Step by Step Answer:

Picture the Problem A yoyo spins about its rotation axis decreasi...View the full answer

Physics

Students also viewed these Mechanics questions