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How do I do this problem? The answer is D but I keep getting

You are currently reading a thread in /wsr/ - Worksafe Requests
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Anonymous
2016-02-08 22:29:23 Post No. 52631
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Anonymous 2016-02-08 22:29:23 Post No. 52631 [Report]
How do I do this problem? The answer is D but I keep getting 9 ft using the velocity IVP. Is there a position IVP that I am not seeing?
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Anonymous 2016-02-08 23:13:54 Post No.52660
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Anonymous 2016-02-08 23:13:54 Post No.52660 [Report]
>>52631
Acceleration isn't constant so you can't use the Kinematic equations. I forget what the IVP equations are but I would just integrate.
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Anonymous 2016-02-09 00:00:18 Post No.52690
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Anonymous 2016-02-09 00:00:18 Post No.52690 [Report]
>>52631
Yeah, I'm also not seeing anything from which you could infer the initial position. And I'm getting x(2) = 9 + x(0) as well.
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Anonymous 2016-02-09 00:12:15 Post No.52699
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Anonymous 2016-02-09 00:12:15 Post No.52699 [Report]
>>52631
>>52690
Unsolvable. Two integrations means you need two boundary condition but they only gave one. Googling also shows that whoever made this test deliberately removed the second boundary condition.
Thread replies: 4
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