A semi$-$elliptical leaf spring has six graduated$-$length leaves, including the master

leaf, and two additional full$-$length leaves. A leaf measures $50$ mm in width and $7\mathrm{.}5$

mm in thickness. The two eyes are separated by one meter from one another. The

leaves are prestressed to produce stress in each leaf of the same magnitude, or

$350\frac{N}{m}m2,$ at the maximum load. Find out how much force the spring can endure

at its maximum. Mention design databook page numbers used