Determine the force P to prevent slipping at the bottom of the ladder.
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Determine the force P to prevent slipping at the bottom of the ladder.
Transcribed Image Text:Determine the force P to prevent
slipping at the bottom of the ladder if a
man that weighs 65 kg climbed up 4 m.
from the top. The weight of the ladder is
30 kg and the angle of friction for the
two contact surfaces is 15°. Angle 0
shown in figure between the ladder and
the surface is 50°.
Wman
12
Wiadder
668.22 N
688.22 N
678.22 N
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