Consider again the ladder in Figure P8.38. We saw in Problem 8.38 that the force supplied by
Question:
Consider again the ladder in Figure P8.38. We saw in Problem 8.38 that the force supplied by the person increases with increasing angle ?? as the ladder is initially lifted off the ground. When the ladder is sufficiently high (the angle ?? is sufficiently large), though, it becomes easier to raise the ladder higher (i.e., the necessary applied force becomes smaller). Find the angle ?? at which that happens.
Figure P8.38
?
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Apply the concepts of center of mass rotational equilibrium and translational equilibrium See Figu...View the full answer
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Related Book For 
College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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