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Example 1.4: A merry-go-round usually consists of a central vertical pillar. At the top of it there are horizontal rods which can rotate about vertical axis. At the end of this horizontal rod there is a vertical rod fitted like an elbow joint. At the lower end of each vertical rod, there is a horse on which the rider can sit. As the merry-go-round is set into rotation, these vertical rods move away from the axle by making some angle with the vertical. |
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Answer» answer: length of the horizontal rod,H=2.1m length of the initially vertical rod radius of the horizontal CIRCULAR motion of the rider =H+V sin 37°=3.0m if T COS tita =mg and T sin tita =mrw2=4π2 mrn2 tan tita =4π2rn2 g n=√tan 1 4r. =. 4. rev s-1 as g=π2 |
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