The sack of cement has a weight of \(90 \mathrm{lb}\). Determine the maximum height \(h\) from which it can be dropped from rest onto the center of the \(\mathrm{W} 10 \times 39\) structural steel A-36 beam so that the maximum bending stress due to impact does not exceed \(30 \mathrm{ksi}\).

Transcribed Image Text:

9 T h 12 ft 12 ft