The crate shown is held against wedge B by a spring. The spring is 92.5% of its original uncompressed length l=2.50m , and the spring constant is given as k=1350N/m . The coefficient of static friction at all contacting surfaces is μs=0.150 . The mass of the crate is m=28.0kg . The angle is θ=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) 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. Part B - Finding the smallest horizontal force P to move the crate upward 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.
The crate shown is held against wedge B by a spring. The spring is 92.5% of its original uncompressed length l=2.50m , and the spring constant is given as k=1350N/m . The coefficient of static friction at all contacting surfaces is μs=0.150 . The mass of the crate is m=28.0kg . The angle is θ=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) 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. Part B - Finding the smallest horizontal force P to move the crate upward 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.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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The crate shown is held against wedge B by a spring. The spring is 92.5% of its original uncompressed length l=2.50m , and the spring constant is given as k=1350N/m . The coefficient of static friction at all contacting surfaces is μs=0.150 . The mass of the crate is m=28.0kg . The angle is θ=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)
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.
Part B - Finding the smallest horizontal force P to move the crate upward
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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