The strength of a beam is directly proportional to its width and the square of its depth but inversely proportional to its length. A beam that is
55
inches wide,
88
inches deep, and
1010
feet long can support a weight of
17601760
pounds. If the same type of beam that is
77
inches wide and
44
inches deep can support
440440
pounds, how long is the beam?
Suppose that the maximum weight that a certain type of rectangular beam can support varies inversely as its length and jointly as its width and the square of its height. Suppose also that a beam 6 inches wide, 2 inches high, and 12 feet long can support a maximum of 14 tons. What is the maximum weight that could be supported by a beam that is 4 inches wide, 3 inches high, and 14
feet long?
2 answers
52 inches is what percent of 20 feet?
2 answers