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box with mass m = 3.25 kg rests on the top of a bar. The coefficient of static friction between the box and the bar is μs = 0.71 and the coefficient of kinetic friction is μk = 0.36. Write an expression for Fm the minimum force required to produce movement of the box on the top of the bar.   Fm= Solve numerically for the magnitude of the force Fm in Newtons.  fm= Write an expression for a, the box's acceleration, after it begins moving. (Assume the minimum force, Fm, continues to be applied.)  Solve numerically for the acceleration, a in m/s2.

box with mass m = 3.25 kg rests on the top of a bar. The coefficient of static friction between the box and the bar is μs = 0.71 and the coefficient of kinetic friction is μk = 0.36. Write an expression for Fm the minimum force required to produce movement of the box on the top of the bar.   Fm= Solve numerically for the magnitude of the force Fm in Newtons.  fm= Write an expression for a, the box's acceleration, after it begins moving. (Assume the minimum force, Fm, continues to be applied.)  Solve numerically for the acceleration, a in m/s2.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A box with mass m = 3.25 kg rests on the top of a bar. The coefficient of static friction between the box and the bar is μs = 0.71 and the coefficient of kinetic friction is μk = 0.36.

Write an expression for Fm the minimum force required to produce movement of the box on the top of the bar.  
Fm=

Solve numerically for the magnitude of the force Fm in Newtons. 
fm=

Write an expression for a, the box's acceleration, after it begins moving. (Assume the minimum force, Fm, continues to be applied.) 

Solve numerically for the acceleration, a in m/s2. 

The image is a physics diagram illustrating the concept of friction and force. It shows a block with mass "m" placed on a horizontal surface. Key elements in the diagram: 1. **Block with Mass (m)**: The block is represented as a rectangular object with the mass labeled as "m." It is resting on a surface. 2. **Applied Force (Fₘ)**: An arrow pointing to the right is labeled "Fₘ," indicating the direction of the applied force on the block. The arrow signifies that the force is being exerted horizontally. 3. **Surface Friction (μₛ, μₖ)**: Below the surface on which the block rests are the symbols "μₛ" and "μₖ." These represent the coefficients of static friction (μₛ) and kinetic friction (μₖ) between the block and the surface. 4. **Coordinate Axes (x, y)**: In the top right corner, there are axes labeled "x" and "y," depicting the horizontal and vertical directions, respectively. This diagram is used to analyze the forces acting on the block, particularly when discussing static and kinetic friction. The static friction coefficient (μₛ) refers to the frictional force that must be overcome to start moving the block, while the kinetic friction coefficient (μₖ) is used once the block is in motion. The applied force (Fₘ) must exceed the static friction to initiate motion.
Transcribed Image Text:The image is a physics diagram illustrating the concept of friction and force. It shows a block with mass "m" placed on a horizontal surface. Key elements in the diagram: 1. **Block with Mass (m)**: The block is represented as a rectangular object with the mass labeled as "m." It is resting on a surface. 2. **Applied Force (Fₘ)**: An arrow pointing to the right is labeled "Fₘ," indicating the direction of the applied force on the block. The arrow signifies that the force is being exerted horizontally. 3. **Surface Friction (μₛ, μₖ)**: Below the surface on which the block rests are the symbols "μₛ" and "μₖ." These represent the coefficients of static friction (μₛ) and kinetic friction (μₖ) between the block and the surface. 4. **Coordinate Axes (x, y)**: In the top right corner, there are axes labeled "x" and "y," depicting the horizontal and vertical directions, respectively. This diagram is used to analyze the forces acting on the block, particularly when discussing static and kinetic friction. The static friction coefficient (μₛ) refers to the frictional force that must be overcome to start moving the block, while the kinetic friction coefficient (μₖ) is used once the block is in motion. The applied force (Fₘ) must exceed the static friction to initiate motion.
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