Practice Problem 6-3 (a) |
Given: When a diver jumps on a diving board he exerts a 420 N force on the end of a diving board. The board has a length of L = 4.0 m, a width of 0.6 m and a thickness of 5 cm. Let a = 1.2 m. Req'd: |
Solution: The maximum bending moment occurs at the middle support and is given by: M = F(L-a) = (420 N)(2.8 m) = 1176 N-m |