I wrote my rigid body mechanics final today. I don't feel

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Anonymous
2017-08-11 05:00:32 Post No. 9099082
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Anonymous 2017-08-11 05:00:32 Post No. 9099082 [Report]

I wrote my rigid body mechanics final today. I don't feel very good about it, even though this is the second time I took the class. Of the questions, I'm only confident about one of them. Two others I'm afraid I made a calculation error, and the last one I know I completely fucked up.

I spent too much time studying for differential equations (yesterday, went well) and circuit analysis (tomorrow morning).

I may never be an engineer at this rate.

Anonymous 2017-08-11 05:22:45 Post No.9099105
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Anonymous 2017-08-11 05:22:45 Post No.9099105 [Report]

>>9099082
What types of questions appeared on your exam? Can you restate some problems? I'm mostly curious what rigid body dynamics is about for I have no clue

Anonymous 2017-08-11 05:31:02 Post No.9099115
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Anonymous 2017-08-11 05:31:02 Post No.9099115 [Report]

>>9099105
Physics problems with moving bodies rather than point masses. Pendulums, gears, that sort of thing.

One problem was:

Pendulum AB (a 2kg, .2m ball attached to a 1kg, 1m arm) swings 90° down from a horizontal position and strikes hanging sphere C (5kg, 1.2m) with a coefficient of restitution of 0.5. What is the angular velocity of each in the instant after impact, and how high will the pendulum swing back up?

Anonymous 2017-08-11 05:54:30 Post No.9099135
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Anonymous 2017-08-11 05:54:30 Post No.9099135 [Report]

>>9099115
Thank you anon for answering. I'm happy for you being able to attend such classes, I wish I could too. I hope you pass the exam.

Anonymous 2017-08-11 06:01:25 Post No.9099142
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Anonymous 2017-08-11 06:01:25 Post No.9099142 [Report]

>>9099135
>I wish I could too.
Why can't you?

Anonymous 2017-08-11 06:11:19 Post No.9099153
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Anonymous 2017-08-11 06:11:19 Post No.9099153 [Report]

>>9099142
I haven't had any physics classes at all during my BSc and MSc. I assume I need at least need classical mechanics before embarking with rigid bodies. I will graduate within a year so I'm to late to start with mechanics now I think.

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I'm aware that Imgur.com will stop allowing adult images since 15th of May. I'm taking actions to backup as much data as possible.
Read more on this topic here - https://archived.moe/talk/thread/1694/