The figure shows a photo of a typical merry-go- round, found at many playgrounds and a dia...
The figure shows a photo of a typical merry-go- round, found at many playgrounds and a diagram giving a top view. Four children are standing on the ground and pulling on the merry-go- round as indicated by the force arrows. The four forces have the magnitudes F1 = 104.9 N, F2 = 89.1 N, F3 = 62.8 N, and act in a tangential direction. With what force, 
, also in a tangential direction and acting at the black point, does a fifth child have to pull in order to prevent the merry- go-round from moving? Specify the magnitude of the force and state whether the force is acting counterclockwise or clockwise.
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