Why Does My Force Calculation Differ From the Book?

Thread starter Gmaximus
Start date Sep 12, 2004
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Force

AI Thread Summary

The force calculation presented involves comparing two forces, F_1 and F_2, with respective areas A_1 and A_2. The calculation performed was F_1 = (1.5/21) * 4000, resulting in 280 pounds. The discrepancy with the book's answer led to confusion, but it was clarified that the correct approach is to use the ratio of forces to areas. Ultimately, the individual confirmed their calculation was correct, attributing the error to the book. The discussion highlights the importance of verifying calculations against established formulas.

Sep 12, 2004

Gmaximus

F_1=x
F_2=4000lbs
A_1=1.5 in
A_2=21 in

So, i did:
F_1=1.5/21 * 4000

Gave me 280 pounds.
My book, however, disagrees.

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Sep 12, 2004

Tide

Science Advisor

Homework Helper

Yes, but what is the problem??

Sep 12, 2004

faust9

Start with \frac{F_1}{A_1}=\frac{F_2}{A_2}

Sep 13, 2004

Gmaximus

never mind guys, i did it right. The book was wrong.

The problem was solve for X.

Thanks anyway!

Sep 14, 2004

HallsofIvy

Science Advisor

Homework Helper

I wish someone would give me 280 pounds!

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