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The 49-kg block rests on the horizontal surface, and a force P = 427 N, whose direction can be varied, is applied to the block. (a) If the block begins to slip when e is reduced to 39°, calculate the coefficient of static friction us between the block and the surface. (b) If P is applied with e = 53°, calculate the friction force F. The force Fis positive if to the right, negative if to the left.

The 49-kg block rests on the horizontal surface, and a force P = 427 N, whose direction can be varied, is applied to the block. (a) If the block begins to slip when e is reduced to 39°, calculate the coefficient of static friction us between the block and the surface. (b) If P is applied with e = 53°, calculate the friction force F. The force Fis positive if to the right, negative if to the left.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The 49-kg block rests on the horizontal surface, and a force P = 427 N, whose direction can be varied, is applied to the block. (a) If the block begins to slip when e is reduced to 39°, calculate the coefficient of static friction u; between the block and the surface. (b) If P is applied with e = 53°, calculate the friction force F. The force Fis positive if to the right, negative if to the left. 49 kg Answers: (a) Hs = (b) F= i N
Transcribed Image Text:The 49-kg block rests on the horizontal surface, and a force P = 427 N, whose direction can be varied, is applied to the block. (a) If the block begins to slip when e is reduced to 39°, calculate the coefficient of static friction u; between the block and the surface. (b) If P is applied with e = 53°, calculate the friction force F. The force Fis positive if to the right, negative if to the left. 49 kg Answers: (a) Hs = (b) F= i N
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