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Wedges Learning Goal: To use the equations of equilibrium to analyze a system containing a wedge and to determine the necessary applied force to introduce motion into the system. The crate shown is held against wedge B by a spring. The spring is 94.5% of its original uncompressed length = 2.50 m, and the spring constant is given as k = 1450 N/m. The coefficient of static friction at all contacting surfaces is 0.120. The mass of the crate is m = 28.0 kg. The angle is - 10.0°. Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move. Part A - Determining the normal force exerted by the crate on the wedge Determine the normal force Nc that the crate exerts on the wedge when the system is at rest. Express your answer to three significant figures and include the appropriate units. You did not open hints for this part. ANSWER: No: = 314.16 N Incorrect; Try Again; 3 attempts remaining B y

Wedges Learning Goal: To use the equations of equilibrium to analyze a system containing a wedge and to determine the necessary applied force to introduce motion into the system. The crate shown is held against wedge B by a spring. The spring is 94.5% of its original uncompressed length = 2.50 m, and the spring constant is given as k = 1450 N/m. The coefficient of static friction at all contacting surfaces is 0.120. The mass of the crate is m = 28.0 kg. The angle is - 10.0°. Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move. Part A - Determining the normal force exerted by the crate on the wedge Determine the normal force Nc that the crate exerts on the wedge when the system is at rest. Express your answer to three significant figures and include the appropriate units. You did not open hints for this part. ANSWER: No: = 314.16 N Incorrect; Try Again; 3 attempts remaining B y

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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Wedges Learning Goal: To use the equations of equilibrium to analyze a system containing a wedge and to determine the necessary applied force to introduce motion into the system. The crate shown is held against wedge B by a spring. The spring is 94.5% of its original uncompressed length = 2.50 m, and the spring constant is given as k = 1450 N/m. The coefficient of static friction at all contacting surfaces is 0.120. The mass of the crate is m = 28.0 kg. The angle is - 10.0°. Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move. Part A - Determining the normal force exerted by the crate on the wedge Determine the normal force Nc that the crate exerts on the wedge when the system is at rest. Express your answer to three significant figures and include the appropriate units. You did not open hints for this part. ANSWER: No: = 314.16 N Incorrect; Try Again; 3 attempts remaining B y
Transcribed Image Text:Wedges Learning Goal: To use the equations of equilibrium to analyze a system containing a wedge and to determine the necessary applied force to introduce motion into the system. The crate shown is held against wedge B by a spring. The spring is 94.5% of its original uncompressed length = 2.50 m, and the spring constant is given as k = 1450 N/m. The coefficient of static friction at all contacting surfaces is 0.120. The mass of the crate is m = 28.0 kg. The angle is - 10.0°. Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move. Part A - Determining the normal force exerted by the crate on the wedge Determine the normal force Nc that the crate exerts on the wedge when the system is at rest. Express your answer to three significant figures and include the appropriate units. You did not open hints for this part. ANSWER: No: = 314.16 N Incorrect; Try Again; 3 attempts remaining B y
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