A long plank xy is placed in the ground, a load of 120N is placed on it, at a distance of 0.50m from end X, as shown. End Y is lifted off the ground, The upward force needed to do this is 65N in the diagram, W is the weight of the plank, acting on its mid point
what is the value of W
A.35N
B.47N
C.100N
D133N.
Answers: 2
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A long plank xy is placed in the ground, a load of 120N is placed on it, at a distance of 0.50m from...
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