Suppose that the elliptical-end fuel tank in Prob. 2.101 is 10 m long and filled completely with fuel oil (ρ = 890 kg/m3). Let the tank be pulled along a horizontal road in rigid-body motion. Find the acceleration and direction for which
(a) A constant-pressure surface extends from the top of the front end to the bottom of the back end; and
(b) The top of the back end is at a pressure 0.5 atm lower than the top of the front end.

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2 m Fuel oil