FIGURE 13.1 shows two boxes P and Q that are being balanced on a uniform board of
length 4 m which is pivoted at its centre O. The board has a weight of 100 N while the
mass of P and Q are 6 kg and 5 kg, respectively.
(a) Sketch the free body diagram of the board. [2 m]
(b) Determine the distance x. [3 m]
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Answer:
P and Q are balance by o
Explanation:
x =1
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