Raising a Ladder a ladder carried by a fire truck is 20.0 m long. The ladder weighs
Question:
(Hg. 11.22); you can ignore the friction torque at the pin. The ladder is raised into position by a force applied by a hydraulic piston at C. Point C is 8.0 m from A, and the force F exerted by the piston makes an angle of 40° with the ladder. What magnitude must F have to just lift the ladder off the support bracket at B1 Start with a free-body diagram of the ladder?
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IDENTIFY Apply 7 0 to the ladder SET UP Take the axis to be at point4 The freebody ...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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