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20-12-2022
Physics

contestada

1
A uniform horizontal beam, pivoted at its right-hand end, is in equilibrium. A force of 60N acts
vertically upwards on the beam as shown.
60N
20 cm
What is the weight of the beam?
A 36N
B 40N
weight
of beam
C 90N
30 cm
D 100N
-pivot

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