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 Equilibrium and Centre of Gravity Questions and Answers

John carried a uniform post of mass 20kg horizontally on his shoulder as shown in fig.6. He placed the post on his shoulder such that the
centre of gravity of the pole is 1.0m behind him. He balanced the post by applying a downward force F at a point 0.5m on the part of the pole in front of him.
Determine the value of the force F.

 (4m 2s)
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