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Class test #1 am

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Class test #1 am

1. 1. Class Test #1 Statics (10% of Statics)Name:Student Number:Question 1 (3 marks)Draw a Free Body Diagram for the ball D, which has a mass of 20kg. Take g = 10m/s2 andF= 10N Assume three different ropes support the ball. (1 marks)Then draw a Free Body Diagram of the ring at A. (2 marks)Page 1 of 4
2. 2. Question 2 (5 mark)Two pipes rest on a shovel, as shown below. Examine the different free body diagramslisted and choose the best free body diagram for the outermost pipe. (1 mark) A C N2 N1 N1 W D B N2 N2 N1 W WDraw the free body diagram of the innermost pipe. Assume all contact surfaces are smooth.Make sure you identify each force on your diagram. (eg N= the normal reaction forcebetween… etc) (4 marks)Page 2 of 4
3. 3. Question 3 (4 marks)Calculate the resultant moment at O for the following system of pipes and cables.Page 3 of 4
4. 4. Question Four (8 marks)For F1= 600N and φ=30°, calculate the resultant force acting on the eyebolt as a magnitudeand an angle measured clockwise from the positive x-axis. Draw a diagrma of FR theresultant, showing the angle you have caculated.Page 4 of 4