a=2
b=5
80*a=160
90*b=450
100*b=500
Extracted text: Question 1 A Two solid cylindrical rods AB and BC are welded together at B and loaded as shown. Knowing that the average normal stress must not exceed 80*a MPa in either rod, determine the 100'bmm smallest allowable values of d, and d2. 90'b mm - da