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 Turning Effect of a Force Questions and Answers and Answers

Figure 5 shows a uniform rod 4m and of mass 2kg. it is pivoted 1m from one end and balanced horizontally by
a string attached near the other end.
Determine the position where a mass of 5kg should be placed on the rod so that the rod remains horizontal
and the tension in the string is zero.

 (4m 16s)
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