The 77.0 kg painter in the figure below is using a large stepladder. The base of the ladder is 3.0 m wide, and the ladder is 7.0 m high. The painter is on a step that is 2.0 m above the floor. The horizontal bar of the ladder has a mass of 10.0 kg, and the entire ladder has a mass of 64.0 kg. Assume that the floor is frictionless. A В C 7.0 m 5.0 m 2.0 m 3.0 m

The 77.0 kg painter in the figure below is using a large stepladder. The base of the ladder is 3.0 m wide, and the ladder is 7.0 m high. The painter is on a step that is 2.0 m above the floor. The horizontal bar of the ladder has a mass of 10.0 kg, and the entire ladder has a mass of 64.0 kg. Assume that the floor is frictionless. A В C 7.0 m 5.0 m 2.0 m 3.0 m

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 74P: A stepladder of negligible weight is constructed as shown in Figure P10.73, with AC = BC = ℓ. A...

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A stepladder of negligible weight is constructed as shown in Figure P10.73, with AC = BC = ℓ. A painter of mass m stands on the ladder a distance d from the bottom. Assuming the floor is frictionless, find (a) the tension in the horizontal bar DE connecting the two halves of the ladder, (b) the normal forces at A and B, and (c) the components of the reaction force at the single hinge C that the left half of the ladder exerts on the right half. Suggestion: Treat the ladder as a single object, but also treat each half of the ladder separately. Figure P10.73 Problems 73 and 74.
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