Engineering

Charlize

11 March, 06:22

In order to impress your neighbors and improve your vision in traffic jams, you decide to mount a cylindrical periscope 2.0 m high and 0.1 m in diameter on top of your car. You consult the literature and find that the drag coefficient (based on frontal area) is 1.1 for Re200,000. Using this information, answer the three questions given. (HINT: make a sketch) The periscope's drag at your maximum speed of 75 mph is а bout: (A) 45 N (B) 4 N (C) 450 N (D) 5 N

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