physics

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A weight (with a mass of 42 kg) is suspended
from a point near the right-hand end of a uni-
form boom with a mass of 37 kg
.
To support
the uniform boom a cable runs from this same
point to a wall (the left-hand vertical coordi-
nate in the figure) and by a pivot on the same
wall at an elevation of 4 m
.

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