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 and
F= 10N Assume three different ropes support the ball. (1 marks)
Then draw a Free Body Diagram of the ring at A. (2 marks)
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2. Question 2 (5 mark)
Two pipes rest on a shovel, as shown below. Examine the different free body diagrams
listed 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
W
Draw 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 force
between… etc) (4 marks)
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3. Question 3 (4 marks)
Calculate the resultant moment at O for the following system of pipes and cables.
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4. Question Four (8 marks)
For F1= 600N and φ=30°, calculate the resultant force acting on the eyebolt as a magnitude
and an angle measured clockwise from the positive x-axis. Draw a diagrma of FR the
resultant, showing the angle you have caculated.
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