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The desk has a weight of 62 lb and a center of gravity at G. The coefficients of static and kinetic friction at A and B are u, = 0.5 and uk = 0.2, respectively. (Figure 1)

The desk has a weight of 62 lb and a center of gravity at G. The coefficients of static and kinetic friction at A and B are u, = 0.5 and uk = 0.2, respectively. (Figure 1)

International Edition---engineering Mechanics: Statics, 4th Edition
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.49P
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- Please Provide Free Body Diagrams and Kinetic Diagrams.
- Please state all equations in variable form first before substituting values for the variables.
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Part C Find the vertical reaction on each of the two legs at B. Express your answer to three significant figures and include the appropriate units. HA ? NB = Value Units
Transcribed Image Text:Part C Find the vertical reaction on each of the two legs at B. Express your answer to three significant figures and include the appropriate units. HA ? NB = Value Units
The desk has a weight of 62 lb and a center of gravity at G. The coefficients of static and kinetic friction at A and B are u, = 0.5 and uk = 0.2, respectively. (Figure 1) 30° 1 ft 2 ft B 2 ft-- 2 ft- Part A Determine the initial acceleration of a desk when the man applies enough force Fto overcome the static friction at A and B. Express your answer to three significant figures and include the appropriate units. Enter positive value if the acceleration is to the right and negative value if the acceleration is to the left. HA Value Units Part B Find the vertical reaction on each of the two legs at A. Express your answer to three significant figures and include the appropriate units. HÁ ? NA = Value Units
Transcribed Image Text:The desk has a weight of 62 lb and a center of gravity at G. The coefficients of static and kinetic friction at A and B are u, = 0.5 and uk = 0.2, respectively. (Figure 1) 30° 1 ft 2 ft B 2 ft-- 2 ft- Part A Determine the initial acceleration of a desk when the man applies enough force Fto overcome the static friction at A and B. Express your answer to three significant figures and include the appropriate units. Enter positive value if the acceleration is to the right and negative value if the acceleration is to the left. HA Value Units Part B Find the vertical reaction on each of the two legs at A. Express your answer to three significant figures and include the appropriate units. HÁ ? NA = Value Units
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