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Units incorrectly converting to lb/s^2?

TN_9481700
3-Visitor

Units incorrectly converting to lb/s^2?

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

 

1 ACCEPTED SOLUTION

Accepted Solutions

lb is a Mathcad unit of mass (like kg)

 

lbf is "one pound force"

Fred_Kohlhepp_0-1612297870069.png

 

 

View solution in original post

3 REPLIES 3

lb is a Mathcad unit of mass (like kg)

 

lbf is "one pound force"

Fred_Kohlhepp_0-1612297870069.png

 

 

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

 

I appreciate the prompt response. 

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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