For the raft shown in Fig. 5.27, how much of the drums will be submerged when only the pla...

For the raft shown in Fig. 5.27, how much of the drums will be submerged when only the platform is being supported? Refer to Problems 5.31 and 5.32 for data.

Problem 5.31

Figure 5.27 shows a raft made of four hollow drums supporting a platform. Each drum weighs 30 lb. How much total weight of the platform and anything placed on it can the raft support when the drums are completely submerged in fresh water?

FIGURE 5.27 Problems

Problem 5.32

Figure 5.28 shows the construction of the platform for the raft described in Problem 5.31. Compute its weight if it is made of wood of a specific weight of 40.0 lb/ft3.

FIGURE 5.28 Raft construction for Problems