Home / Questions / The rectanglar block shown rotatesabout the diagonal OA with a constant angular velocity o...
The rectanglar block shown rotatesabout the diagonal OA with a constant angular velocity of 6.76rad/s. Knowing that the rotation iscounterclockwise as viewed fromA, determine the velocity and acceleration of point B at theinstant shown. 
I have a question on problem 15.10. Shown above is problem15.9 and 15.10 says to use this diagram and find the velocity andacceleration at point B if the blockrotates around diagnal OA at3.38 rad/s and decreases at a rate of 5.07 rad/s^2.I figured the velocity of Vb to be (-18.7i + 5.99j -780k) bytaking the unit vector of OA (0.148i +0.923j +0.355k) and takingthe cross product ofthat timesthe 3.38 and then multiplyingthis value for ω by the position vector for point B.I'm not sure how to get the acceleration, though.I knowthe answer in the book is(-3.46i - 27.6j + 73.1k) but I am not sure how they cameabout that answer. I know it somehow relates the value of 5.07 andthe position vector and ω , but I'mstruggling with thisone.Anyone have any suggestions? Any help would beappreciated.
May 05 2020 View more View Less
I have a ledger for Assets, Liabilities, and Equity. Please let me know what account the following transactions go into and if they are DR or CR. Finally could you explai...
Sep 05 2020Which two rows of the cash flow statement should be negative in a strong corporation?A. Investing Activities and Financing ActivitiesB. None of the rows should be negativ...
Aug 14 2020Performance appraisal methods must consider various aspects of a job. Which of the following types of appraisal implies evaluating an individual based on actual job perfo...
Apr 06 2018Your company, which has a MARR of 12%, is considering the following two investment alternatives: Project A Project B Initial Capital Investment $10,000 $15,000 Revenues $...
Feb 07 2020FINANCIAL PLANNING PROBLEMS 1. Computing Taxable Income. Thomas Franklin arrived at the following tax information Gross salary, $41.780 Interest earnings, $225 Dividend i...
Apr 10 2020The binomial system of classification was developed by: (A) Darwin (B) Wallace (C) Linnaeus (D) Malthus (E) none of the above
Mar 22 2018Which of the following molecules would exhibit resonance?A) H2O B) N2 C) NO2 D) CO2 E) CCl472. Which of the following molecules would exhi...
Jan 24 2020To make the collective bargaining process a success, what are the roles of workers and management representatives? >
May 20 2020Do you think that mandatory standards should be developed for the design of graphs of financial data that are included in annual reports and other periodic communications...
May 05 2020You must evaluate the purchase of a proposed spectrometer for the R&D department. The base price is $270,000, and it would cost another $40,500 to modify the equipment fo...
Aug 17 2020