Use energy methods to find how fast the 2.0-kg mass in Fig. 10-4 is descending after it
Question:
Use energy methods to find how fast the 2.0-kg mass in Fig. 10-4 is descending after it has fallen 1.5 m from rest. Use the same values for I, r1, and r2 as in Problem 10.13.
Problem 10.13
The moment of inertia of the frictionless pulley system illustrated in Fig. 10-4 is I = 1.70 kg · m2, where r1 = 50 cm and r2 = 20 cm. Find the angular acceleration of the pulley system and the tensions FT1 and FT2.
Transcribed Image Text:
a₁ FTV FTI 2.0 kg (2.0)(9.81) N FT2 F72 1.8 kg 92 (1.8) (9.81) N
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 77% (9 reviews)
As the 20kg mass descends its PEG decreases Meanwhile the 18kg mass rises and its PEG increases The energy difference APEG1 APEG2 must go into the linear KE of the two masses and the rotational KE of the pulleys If the angular speed of the wheel is w then v rw and v rw As the wheel turns through an angle 8 the 20kg mass falls through a distance s and the 18 kg mass rises a ...View the full answer
Answered By
JAPHETH KOGEI
Hi there. I'm here to assist you to score the highest marks on your assignments and homework. My areas of specialisation are:
Auditing, Financial Accounting, Macroeconomics, Monetary-economics, Business-administration, Advanced-accounting, Corporate Finance, Professional-accounting-ethics, Corporate governance, Financial-risk-analysis, Financial-budgeting, Corporate-social-responsibility, Statistics, Business management, logic, Critical thinking,
So, I look forward to helping you solve your academic problem.
I enjoy teaching and tutoring university and high school students. During my free time, I also read books on motivation, leadership, comedy, emotional intelligence, critical thinking, nature, human nature, innovation, persuasion, performance, negotiations, goals, power, time management, wealth, debates, sales, and finance. Additionally, I am a panellist on an FM radio program on Sunday mornings where we discuss current affairs.
I travel three times a year either to the USA, Europe and around Africa.
As a university student in the USA, I enjoyed interacting with people from different cultures and ethnic groups. Together with friends, we travelled widely in the USA and in Europe (UK, France, Denmark, Germany, Turkey, etc).
So, I look forward to tutoring you. I believe that it will be exciting to meet them.
3.00+
2+ Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Physics questions
-
The moment of inertia of the frictionless pulley system illustrated in Fig. 10-4 is I = 1.70 kg m 2 , where r 1 = 50 cm and r 2 = 20 cm. Find the angular acceleration of the pulley system and the...
-
The pulley in Fig. 9.35 has radius R and a moment of inertia l. The rope does not slip over the pulley, and the pulley spins on a frictionless axle. The coefficient of kinetic friction between block...
-
In Figure P10.43 the sliding block has a mass of 0.850 kg, the counterweight has a mass of 0.420 kg, and the pulley is a hollow cylinder with a mass of 0.350 kg, an inner radius of 0.020 0 m, and an...
-
A group of fraud examiners is coordinating an investigation at a local law firm. Several lawyers at the firm are suspected of overbilling clients, possibly creating fake client accounts, and then...
-
The following information was obtained from the accounts of Airlines International dated December 31, 2010. It is presented in alphabetical order. Accounts payable ............... $ 77,916 Accounts...
-
Quality control is very important in manufacturing. Several times during the week, a paint company records the number of dented cans in a random sample of30 paint cans from the filling line. What...
-
What do you understand by the term monetary policy?
-
As the bookkeeper of Petes Plowing of Fredericton, you have been asked to complete the entire accounting cycle for Pete from the following information Adjustment Data a. Snow supplies on hand, $400...
-
Over what period of time should goodwill be amortized? O 40 years or its useful economic life, whichever is shorter 40 years O Goodwill is never amortized. O its useful economic life
-
A flywheel (i.e., a massive disk capable of rotating about its central axis) has a moment of inertia of 3.8 kg m 2 . What constant torque is required to increase the wheels frequency from 2.0 rev/s...
-
As shown in Fig. 10-3, a mass m = 400 g hangs from the rim of a frictionless pulley of radius r = 15 cm. When released from rest, the mass falls 2.0 m in 6.5 s. Find the moment of inertia of the...
-
What opportunities have you have been given in the past? How have they helped you grow? What are possibilities you have for sharing opportunities with others?
-
Which types of adjusting entries are natural opposites? a. Prepaids and accruals b. Expenses and revenues c. Prepaids and depreciation d. Net income and net loss
-
Adjusting the accounts is the process of a. Zeroing out account balances to prepare for the next period b. Subtracting expenses from revenues to measure net income c. Recording transactions as they...
-
What are the distinctive features of accrual accounting and cash-basis accounting? a. Cash-basis accounting records all transactions. b. Accrual accounting records only receivables, payables, and...
-
The adjusted trial balance shows a. Amounts that may be out of balance b. Revenues and expenses only c. Amounts ready for the financial statements d. Assets, liabilities, and owner's equity only
-
Assume you prepay Body Studio for a package of six physical training sessions. Which type of account should you have in your records? a. Prepaid expense b. Accrued expense c. Accrued revenue d....
-
The dean of students at CMSU has learned about the undergraduate survey and has decided to undertake a similar survey for graduate students at CMSU. She creates and distributes a survey of 14...
-
(a) Bright Sdn Bhd (BSB) is a tax resident manufacturing company in Johor, which involves in ceramic tiles. Currently, BSBs annual sales turnover has been forecasted to be around RM 300,000 for the...
-
Water enters a counter flow, double-pipe heat exchanger at a rate of 150 lb m /min and is heated from 60F to 140F by an oil with a specific heat of 0.45 Btu/lb m F. The oil enters at 240F and leaves...
-
A shell-and-tube heat exchanger is used for the heating of oil from 20C to 30C ; the oil flow rate is 12 kg/s (C po = 2.2 kJ/kg K). The heat exchanger has one shell pass and two tube passes. Hot...
-
Consider the exchanger in Problem 22.9. After 4 years of operation, the outlet of the oil reaches 28C instead of 30C with all other conditions remaining the same. Determine the fouling resistance on...
-
S MC.17.030.Algo Question 38 of 42 Last year Godinho Corp. had $476.0 million of sales, and it had $75.0 million of fixed assets that were being operated at 80% of capacity. In millions, how large...
-
Quantitative Questions: 1. A company has bonds on the market making annual coupon payments. The bonds have 7 years to maturity, a par value of $1,000, and selling for $986. At this price, the bonds...
-
Different investor weights. Two risky portfolios exist for investing one is a bond portfolio with a beta of 0.7 and an expected return of 7.4%, and the other is an equity portfolio with a beta of 1.1...
Study smarter with the SolutionInn App