Solved: A 60-kg uniform board 2.4 m long is supported by a pivot 80 cm from the left end
Chapter 12, Problem 18(choose chapter or problem)
A 60-kg uniform board 2.4 m long is supported by a pivot 80 cm from the left end and by a scale at the right end (Fig. 12.14). How far from the left end should a 40-kg child sit for the scale to read zero? Figure 12.14 Exercises 18 and 19
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