PROBLEM #3 - (25 POINTS) In the motion picture "Jaws", a team is trying to capture a large Great White Shark by attaching three empty barrels to the shark to force it to the surface. However, the team is surprised to learn that the shark can still submerge and swim deep below the surface with three drums attached to it. Please determine the minimum weight of the shark (in pounds) in order to overcome the buoyancy forces of these three barrels and show all work. (Note: 1 Cubic Foot = 7.48 Gallons) Boat Seawater Shark = (Volume 55 cuft) -55 gallon barrel (W=20lbs/ea) PROBLEM #4 - (25 POINTS) Say that you are tasked with determining if a concrete dam was safe to resist hydrostatic loads. Your assessment revealed that your dam is susceptible to overturning and you recommend installing tension anchors at 10 feet on center through the dam and secured into the rock below. To justify this design, please: 1. Sketch a free body diagram of this dam, showing all expected forces. 2. Determine the hydrostatic pressures acting on the dam. 3. Determine the magnitude and resultant of each hydrostatic force. 4. What tension force must the anchors provide if they are to help resist the overturning moments with with a factor of safety of at least 2.0? Water Water Depth = 26 feet -Assume the weight is 30kips per foot of the dam and this is it's center of gravity. 22 feet Embed Depth = 4 feet Dam Width = 30 feet J Anchor=25 feet Rock Anchor (Spaced 10' on Center) Assumed Groundwater Elevation

PROBLEM #3 - (25 POINTS) In the motion picture "Jaws", a team is trying to capture a large Great White Shark by attaching three empty barrels to the shark to force it to the surface. However, the team is surprised to learn that the shark can still submerge and swim deep below the surface with three drums attached to it. Please determine the minimum weight of the shark (in pounds) in order to overcome the buoyancy forces of these three barrels and show all work. (Note: 1 Cubic Foot = 7.48 Gallons) Boat Seawater Shark = (Volume 55 cuft) -55 gallon barrel (W=20lbs/ea) PROBLEM #4 - (25 POINTS) Say that you are tasked with determining if a concrete dam was safe to resist hydrostatic loads. Your assessment revealed that your dam is susceptible to overturning and you recommend installing tension anchors at 10 feet on center through the dam and secured into the rock below. To justify this design, please: 1. Sketch a free body diagram of this dam, showing all expected forces. 2. Determine the hydrostatic pressures acting on the dam. 3. Determine the magnitude and resultant of each hydrostatic force. 4. What tension force must the anchors provide if they are to help resist the overturning moments with with a factor of safety of at least 2.0? Water Water Depth = 26 feet -Assume the weight is 30kips per foot of the dam and this is it's center of gravity. 22 feet Embed Depth = 4 feet Dam Width = 30 feet J Anchor=25 feet Rock Anchor (Spaced 10' on Center) Assumed Groundwater Elevation