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TestI%28Spring06%29

# TestI%28Spring06%29 - University of Sharjah College of Arts...

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1 University of Sharjah Semester: Spring 05/06 College of Arts & Sciences Date: March 13, 2006 Department of Basic Sciences Time: 12:00 – 1:00 Physics for Medical Sciences (0214116) Examination I Name: ……………………… ID number : ……………. Instructor: Dr. H. Elmehdi Dr. N. Jisrawi Section: Question 1 Question 2 Question 3 Question 4 Question 5 Total Mark Assigned 5 6 4 4 6 25 Mark Obtained Please read the following instructions carefully : a) The test is made up of 6 questions and 8 pages including this page and the formula sheet. c) Calculators are allowed d) Mobiles must be turned off and put away! 1 51 52 53 54 55 56

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2 Question #1 (5 marks) a) In the treatment of head-and-neck injury, a traction system must be used to prevent any unnecessary movement of the patient’s head or neck. Such a system is schematically shown in the figure below. If the maximum static force, | f s | = 10N in the direction shown; the weight of the patient, | W | = 490 N down and the normal force N = 482 N upwards, use vector addition/subtraction to calculate the tension force, T (magnitude and direction) needed to keep the patient’s head and neck fixed.
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