Learning Goal: The crate shown is held against wedge B by a spring. The spring is 93.5% of its original uncompressed length 1=2.00 m, and the spring constant is given as k=1350 N/m. The coefficient of static friction at all contacting surfaces is H₂=0.100. The mass of the crate is m = 30.0 kg. The angle is = 12.0° Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move.(Figure 1) Figure L. 1 of 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. ▸ View Available Hint(s) Ne=558 Submit HA Previous Answers P = 230 * Incorrect; Try Again; 5 attempts remaining ▾ Part B - Finding the smallest horizontal force P to move the crate upward N 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. View Available Hint(s) Provide Feedback PA Submit Previous Answers 13 ? N 13 ? X Incorrect; Try Again; 5 attempts remaining
Learning Goal: The crate shown is held against wedge B by a spring. The spring is 93.5% of its original uncompressed length 1=2.00 m, and the spring constant is given as k=1350 N/m. The coefficient of static friction at all contacting surfaces is H₂=0.100. The mass of the crate is m = 30.0 kg. The angle is = 12.0° Neglect the mass of the wedge. Assume the crate only moves in the y direction and that wedge A cannot move.(Figure 1) Figure L. 1 of 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. ▸ View Available Hint(s) Ne=558 Submit HA Previous Answers P = 230 * Incorrect; Try Again; 5 attempts remaining ▾ Part B - Finding the smallest horizontal force P to move the crate upward N 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. View Available Hint(s) Provide Feedback PA Submit Previous Answers 13 ? N 13 ? X Incorrect; Try Again; 5 attempts remaining
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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![## Learning Objective:
The crate shown is held against wedge \( B \) by a spring. The spring is 93.5% of its original uncompressed length \( l = 2.00 \, \text{m} \), and the spring constant is given as \( k = 1350 \, \text{N/m} \). The coefficient of static friction at all contacting surfaces is \( \mu_s = 0.100 \). The mass of the crate is \( m = 30.0 \, \text{kg} \). The angle is \( \theta = 12.0^\circ \). Neglect the mass of the wedge. Assume the crate only moves in the \( y \) direction and that wedge \( A \) cannot move. [Figure 1]
### Figure
The diagram shows a vertical spring system with a crate at the base of the spring. The spring is compressed, pushing down on the crate. The crate is in contact with a wedge system, where wedge \( B \) is movable, but wedge \( A \) is fixed. The crate can only move vertically along the y-axis.
---
### Part A - Determining the Normal Force Exerted by the Crate on the Wedge
Determine the normal force \( N_C \) 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.
#### Input Field:
\[ N_C = \boxed{558} \, \text{N} \]
#### Feedback:
- **Incorrect; Try Again: 5 attempts remaining**
---
### 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.
#### Input Field:
\[ P = \boxed{230} \, \text{N} \]
#### Feedback:
- **Incorrect; Try Again: 5 attempts remaining**
---
[**Provide Feedback**]
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Transcribed Image Text:## Learning Objective:
The crate shown is held against wedge \( B \) by a spring. The spring is 93.5% of its original uncompressed length \( l = 2.00 \, \text{m} \), and the spring constant is given as \( k = 1350 \, \text{N/m} \). The coefficient of static friction at all contacting surfaces is \( \mu_s = 0.100 \). The mass of the crate is \( m = 30.0 \, \text{kg} \). The angle is \( \theta = 12.0^\circ \). Neglect the mass of the wedge. Assume the crate only moves in the \( y \) direction and that wedge \( A \) cannot move. [Figure 1]
### Figure
The diagram shows a vertical spring system with a crate at the base of the spring. The spring is compressed, pushing down on the crate. The crate is in contact with a wedge system, where wedge \( B \) is movable, but wedge \( A \) is fixed. The crate can only move vertically along the y-axis.
---
### Part A - Determining the Normal Force Exerted by the Crate on the Wedge
Determine the normal force \( N_C \) 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.
#### Input Field:
\[ N_C = \boxed{558} \, \text{N} \]
#### Feedback:
- **Incorrect; Try Again: 5 attempts remaining**
---
### 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.
#### Input Field:
\[ P = \boxed{230} \, \text{N} \]
#### Feedback:
- **Incorrect; Try Again: 5 attempts remaining**
---
[**Provide Feedback**]
Next ->
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