class test #1 am

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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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)

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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A

B

C

D

WN1 N1N2

N1N2

W

N2W

Question 3 (4 marks)

Calculate the resultant moment at O for the following system of pipes and cables.

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Question Four (8 marks) For F1= 600N and 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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class test #1 am

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