Exam 1 ME 4024: Machine Dynamics Spring 2017 You have 75 minutes to complete thi

Question

Exam 1 ME 4024: Machine Dynamics Spring 2017 You have 75 minutes to complete this enam. This eram s open note and open bok. This is . multiple choice test. If you choose e) then you mast turm in your work for conideration An answer sheet must used to submit your answers or Questions 1-6 refer to the following dingram with a 2 b lender unifom rod Al s chsed to a spring BC 4 ft 4 t 1. The 25-lb slender uniform rod AB is attached to a spring BC, which has an unstretched length of4ft. Ifthe rod is released from rest when e-45°, what is the distance from C to B when the rod is released? a) 4 t b) 5.66 ft c) 7.39 t d) 8 ft e) None of the above. 2. What is the height of the center of mass of link AB where 4S when the line through AC is considered zero? Assume gravity points straight down on the page. a) 2.828 ft b) 2 ft c) 1.414 ft d) 3.464 f e) None of the above.

Explanation / Answer

1. B

2. A

3.C

4.C

5.A

6.B

7.C

8.D

9.B

10.TRUE

11.FALSE

12.FALSE

13.TRUE

14.TRUE

15.A

16.B

17.B

18.C

19.D

20.C

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