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TN_94817001-Visitor
1-Visitor
February 2, 2021
Solved

Units incorrectly converting to lb/s^2?

  • February 2, 2021
  • 2 replies
  • 2364 views

Zip file is attached. 

 

I was working some simple calculations and I could not get the units for "fiu" to come out correctly. 

 

Since this is for a spring, the units should be "lb/in". But instead, MathCAD keeps populating with "lb/s^2". 

 

I have re-worked it several times and still get the same incorrect units in MathCAD. 

 

Not sure what I am doing wrong?

 

Your help is appreciated! 

 

TN_9481700_0-1612296422694.png

 

Best answer by Fred_Kohlhepp

lb is a Mathcad unit of mass (like kg)

 

lbf is "one pound force"

Fred_Kohlhepp_0-1612297870069.png

 

 

2 replies

F
Fred_Kohlhepp23-Emerald IAnswer
23-Emerald I
February 2, 2021

lb is a Mathcad unit of mass (like kg)

 

lbf is "one pound force"

Fred_Kohlhepp_0-1612297870069.png

 

 

    T
    TN_94817001-VisitorAuthor
    1-Visitor
    February 2, 2021

    Wow. Thank you. Can't believe I missed that. 

     

    I appreciate the prompt response. 

    C
    ChrisKaswer16-Pearl
    16-Pearl
    February 2, 2021

    Your formulas are working perfectly...you just need to ask for "lbf/in" and you will get 10483.126 as the numeric value. The unit "lb" is for mass and "lbf" represents force.

     

    Cheers

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