subject
Engineering, 24.05.2020 04:02 juliannabartra

A pulley-block system is used for testing in a UHart mechanics lab. The pulley has an outer radius of R = 0.75 m, an inner radius of 0.44 m, a mass-moment of inertia of IG = 7.5 kg*m2 , and is constrained to rotate about its mass center G. The inner radius has a cord wrapped around it that is used to pull the block, which has a mass of 5.8 kg. The coefficient of friction µ between the block and the surface is 0.37. A second cord wound around the outer radius of the pulley is pulled down with a constant force F of 22 N which starts the system from rest. There is no slip between the cords and the pulley. (a)(15 points) Draw the FBD and the MAD for the system, showing all forces and resulting motions, (b) (20 points) Determine the angular velocity ω of the pulley after 5 seconds.

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
question
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
question
Engineering, 04.07.2019 18:10
For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
Answers: 3
question
Engineering, 04.07.2019 19:10
Which of the following is the most important advantage of a large field of view? a. allows larger areas to be examined b. relieves eyestrain c. minimizes parallax errors. d. increases precision in proportion to the in- crease in field of view
Answers: 2
You know the right answer?
A pulley-block system is used for testing in a UHart mechanics lab. The pulley has an outer radius o...
Questions
question
Mathematics, 02.03.2021 23:20
question
Mathematics, 02.03.2021 23:20
question
Mathematics, 02.03.2021 23:30
Questions on the website: 13722359