A PDF of the quiz solution can be found on the Quiz page of the course website (a link to this page is found in a box on the right hand side of this page).
If you had difficulty working this quiz, please let me know. I would be happy to work with you in resolving the problems that you are having with this material.
2 comments:
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apparently i didn't notice that omega was constant >.<
i was trying to find alpha AB and acceleration of B using separation method but wasn't sure where to have the acceleration to be pointing at.
How do i figure out in which direction should the acceleration be pointing exactly ??
I mean i could roughly figure it out from the motion of the object but can't really find exact numbers.
Recognizing that alpha_AB = 0 is crucial in solving for the accelerations. You need that information to solve for the other unknown angular accelerations.
To find a_B, you need to use the acceleration equation relating points A and B. From this you will find a "j" component resulting from alpha_AB and an "i" component due to the omega_AB^2*r_B/A (centripetal acceleration) term.
Let me know if you have any further questions on this after looking over the solution.
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