midterm08 - Mid-term Quiz for ENGG1010 Foundations of...

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Mid-term Quiz for ENGG1010 Foundations of Engineering Mechanics Faculty of Engineering, HKU Class A , 23 October 2008 Instructions: (1) The quiz has four questions. Attempt all questions. (2) Write down your solutions on the space below each question. (3) Wrie your univ number clearly, and submit only these 4 question sheets with solutions. University number : ______________________ Name: _________________________ (please write very clearly) Q1 . A fighter aircraft landing on an aircraft carrier experiences a deceleration of v 2 / L when its parachut is open, where L is a characteristic length describing the parachute design. What is the distance s needed for the aircraft to reduce its speed from v 0 to v 0 /e 1 (where e=2.71828. .) ? (15 marks) Solution by Dr. Lixi Huang.
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Q2 . As shown below, AB is a vertical wall of height h = 1 m and breadth b = 5 m, which retains water (density ρ = 1,000 kg/m 3 ) on one side to a depth d = 0.8 m. If the wall is fixed at the bottom by a frictionless hinge, calculate the force F that is applied at the top of the wall to keep the wall in equilibrium.
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This note was uploaded on 09/24/2011 for the course ENGG engg1010 taught by Professor Wong during the Spring '11 term at HKU.

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midterm08 - Mid-term Quiz for ENGG1010 Foundations of...

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