Question 55212
The owner of a highway construction company knows that the maximum load (L SAY)a cylindrical column of circular cross section can support varies directly as the fourth power of the diameter(D SAY) and inversely as the square of the height(H SAY). If a column 2 feet in diameter and 10 feet high supports up to 6 tons, how much of a load can a column 3 feet in diameter and 14 feet high support?
L = K*D^4*1/H^2...WHERE K IS A CONSTANT
CASE 1..
6=K*2^4/10^2=16K/100
K=6*100/16=75/2=37.5
CASE 2
L=37.5*3^4/14^2 = 37.5*81/196 = 15.5 T.