Learning Goal: The crate shown is held against wedge B by a spring. The spring is 95.5% of its original uncompressed length 1=2.50 m, and the spring constant is given as k = 1650 N/m The coefficient of static friction at all contacting surfaces is 0.100. The mass of the crate is m=21.0 kg. The angle is 0 = 14.0° Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move. (Figure 1) B 7 x 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 Determine the magnitude of the smallest horizontal force P that is necessary to begin moving the crate upward. Express your answer to three significant figures and include the appropriate units.
Learning Goal: The crate shown is held against wedge B by a spring. The spring is 95.5% of its original uncompressed length 1=2.50 m, and the spring constant is given as k = 1650 N/m The coefficient of static friction at all contacting surfaces is 0.100. The mass of the crate is m=21.0 kg. The angle is 0 = 14.0° Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move. (Figure 1) B 7 x 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 Determine the magnitude of the smallest horizontal force P that is necessary to begin moving the crate upward. Express your answer to three significant figures and include the appropriate units.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Learning Goal:
The crate shown is held against wedge B by a spring. The spring is 95.5% of its original
uncompressed length 1=2.50 m, and the spring constant is given as k = 1650 N/m
The coefficient of static friction at all contacting surfaces is 0.100. The mass of the
crate is m=21.0 kg. The angle is 0 = 14.0° Neglect the mass of the wedge. Assume
the crate only moves in the y direction and that wedge A cannot move. (Figure 1)
B
7
x
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
Determine the magnitude of the smallest horizontal force P that is necessary to begin moving the crate upward.
Express your answer to three significant figures and include the appropriate units.
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