The desk has a weight of 54 lb and a center of gravity at G. The coefficients of static and kinetic friction at A and B are μ = 0.5 and μ = 0.2, respectively. (Eigure 1) Figure -20-20- 201 < 1 of 1 > ▼ Determine the initial acceleration of a desk when the man applies enough force F to 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. ag = Submit Part B Value NA X Incorrect; Try Again; 5 attempts remaining Submit Previous Answers Request Answer Find the vertical reaction on each of the two legs at A. Express your answer to three significant figures and include the appropriate units. Units μà Value 4 ? Units Previous Answers Request Answer
The desk has a weight of 54 lb and a center of gravity at G. The coefficients of static and kinetic friction at A and B are μ = 0.5 and μ = 0.2, respectively. (Eigure 1) Figure -20-20- 201 < 1 of 1 > ▼ Determine the initial acceleration of a desk when the man applies enough force F to 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. ag = Submit Part B Value NA X Incorrect; Try Again; 5 attempts remaining Submit Previous Answers Request Answer Find the vertical reaction on each of the two legs at A. Express your answer to three significant figures and include the appropriate units. Units μà Value 4 ? Units Previous Answers Request Answer
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 7.81P: Calculate the horizontal force P required to push the 85-lb lawn mower at constant speed. The center...
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The desk has a weight of 54 lblb and a center of gravity at GG. The coefficients of static and kinetic friction at AA and BB are μsμs = 0.5 and μkμk = 0.2, respectively. (Figure 1)
Determine the initial acceleration of a desk when the man applies enough force FF to overcome the static friction at AA and BB.
Find the vertical reaction on each of the two legs at AA.
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