Sample Exam Problem 2 Help | EM223 Statics | NEGAHBAN

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This helps us get an idea of where you're stuck and how to help.In summary, the conversation discusses a problem on a sample exam and how to solve it. It involves summing forces and moments and using integrals to find the solution. The variables and equations needed to solve the problem are also mentioned.
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eedayspa
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I am trying to solve the problems on a sample exam, I am stuck on Problem 2, can anyone help? I can't get to help until tomorrow!

Thanks!

http://em-ntserver.unl.edu/NEGAHBAN/EM223/sexam2/sexam2.htm
 
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  • #2
sum the forces in y, and the moment about point 1

define the point at which w1 acts as point 1, x=0
define the point at which w2 acts as point 2, x=35

Sum Fy=0

integral from 0 to 35 of [(w2-w1)/35in)x+w1]dx = 12000lbs


Sum M1=0

integral from 0 to 35 of x[(w2-w1)/35in)x+w1]dx - (14in)(12000lbs) = 0

I'll let you mess with the integration and solve for the two variables (or you can be crafty and replace the integrations with common shape area formulae)
 
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Welcome to the forums, eedayspa.

In the future, please post homework questions to the homework help forum, and also post what you've tried.
 

FAQ: Sample Exam Problem 2 Help | EM223 Statics | NEGAHBAN

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Statics Help is a branch of mechanics that deals with the study of forces and their effects on objects at rest. It is concerned with the analysis of structures and how they behave under different types of loads.

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