7.40. A cylindrical tank, shown in Fig. 7.29, is sitting on a platform with absolutely frictionless wheels on a horizontal plane. There is no air resistance. At time 0, the level in the tank is 10 ft above the outlet, and the whole system is not moving. Then the outlet is opened, and the system is allowed to accelerate to the left. The flow through the outlet nozzle is frictionless. What is the final velocity, assuming that (a) the mass of the tank and cart is zero and (b) the mass of the tank and cart is 3000 lbm? -10 ft 10 ft Exit area ft² FIGURE 7.29
7.40. A cylindrical tank, shown in Fig. 7.29, is sitting on a platform with absolutely frictionless wheels on a horizontal plane. There is no air resistance. At time 0, the level in the tank is 10 ft above the outlet, and the whole system is not moving. Then the outlet is opened, and the system is allowed to accelerate to the left. The flow through the outlet nozzle is frictionless. What is the final velocity, assuming that (a) the mass of the tank and cart is zero and (b) the mass of the tank and cart is 3000 lbm? -10 ft 10 ft Exit area ft² FIGURE 7.29
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Transcribed Image Text:7.40. A cylindrical tank, shown in Fig. 7.29, is sitting on a platform with absolutely
frictionless wheels on a horizontal plane. There is no air resistance. At time 0, the
level in the tank is 10 ft above the outlet, and the whole system is not moving.
Then the outlet is opened, and the system is allowed to accelerate to the left. The
flow through the outlet nozzle is frictionless. What is the final velocity, assuming
that (a) the mass of the tank and cart is zero and (b) the mass of the tank and cart
is 3000 lbm?
-10 ft
Mater
10 ft
Exit area
al ft2
FIGURE 7.29
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