Which of the following choices represents the way of calculating the kinetic friction? by multiplying the coefficient of static by multiplying the coefficient of kinetic friction with the net force friction with the normal force by multiplying the coefficient of static by multiplying the coefficient of kinetic friction with the normal force friction with the net force

Which of the following choices represents the way of calculating the kinetic friction? by multiplying the coefficient of static by multiplying the coefficient of kinetic friction with the net force friction with the normal force by multiplying the coefficient of static by multiplying the coefficient of kinetic friction with the normal force friction with the net force

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Description: Please I need a surely answer and a quicker response Which of the following choices represents the way of calculating the kinetic friction?by multiplying the coefficient of staticby multiplying the coefficient of kineticfriction with the net forcefri

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 64P: If a single constant force acts on an object that moves on a straight line, the objects velocity is...

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If a single constant force acts on an object that moves on a straight line, the objects velocity is a linear function of time. The equation v = vi + at gives its velocity v as a function of time, where a is its constant acceleration. What if velocity is instead a linear function of position? Assume that as a particular object moves through a resistive medium, its speed decreases as described by the equation v = vi kx, where k is a constant coefficient and x is the position of the object. Find the law describing the total force acting on this object.
A sleigh is being pulled horizontally by a train of horses at a constant speed of 8.05 m/s. The magnitude of the normal force exerted by the snow-covered ground on the sleigh is 6.37 103 N. a. If the coefficient of kinetic friction between the sleigh and the ground is 0.23, what is the magnitude of the kinetic friction force experienced by the sleigh? b. If the only other horizontal force exerted on the sleigh is due to the horses pulling the sleigh, what must be the magnitude of this force?
Which statement about kinetic friction and static friction is true? (Some of the options mention a horizontal force that friction opposes. This means that a force is pulling horizontally and friction is acting in the opposite direction.) Your answer: The force of kinetic friction changes if the speed of the object decreases. The force of kinetic friction changes if the horizontal force (or forces) it opposes gets weaker. The force of static friction changes if the speed of the object decreases. The force of static friction changes if O the horizontal force (or forces) it opposes gets weaker.
Which of the following best describes the directions of friction and normal force? Your answer: Friction is always horizontal and normal force is always vertical. Friction is always horizontal and normal force is always perpendicular to the surface. Friction is always parallel to the surface and normal force is always vertical. Friction is always parallel to the surface and normal force is always perpendicular to the surface. There is no consistent pattern.
The coefficient μ of kinetic frictions depends on the surfaces in contact and their conditions, while the coefficient μ of static frictions does not depend on the surfaces conditions. a) Trueb) False
A student presses a book between his hands, as the drawing indicates. The forces that he exerts on the front and back covers of the book are perpendicular to the book and are horizontal. The book weighs 26.9 N. The coefficient of static friction between his hands and the book is 0.414. To keep the book from falling, what is the magnitude of the minimum pressing force that each hand must exert? Number Units
Which statement about kinetic friction and static friction is true? The force of kinetic friction changes if the speed of the object decreases. The force of kinetic friction changes if the horizontal force (or forces) it opposes gets weaker. The force of static friction changes if the speed of the object decreases The force of static friction changes if the horizontal force (or forces) it opposes gets weaker.
A block weighs 100. N and rests on a horizontal surface. If Ms = 0.50 and uk = 0.20 between the block and the horizontal surface, then (a) What is the magnitude of the frictional force acting on the block? Justify your What is the magnitude of the frictional force acting on the block if a horizontal force of 35.0 N is now used to push the block? Justify your answer with a calculation. What is the magnitude of the minimum horizontally applied force that will start the block sliding? Justify your answer with a calculation. If the magnitude of the applied horizontal force on the block is 55.0 N, what is the magnitude of the frictional force acting on the block? Justify your answer with a calculation.
Which of the following is TRUE about the friction force between two surfaces? Mark only one. The surfaces must be in contact with each other in order to have friction. The surfaces must be moving against each other in order to have friction. O The magnitude of the friction force depends on the types of materials present, the force of contact between them, and the surface area of the objects. The magnitude of the friction force increases as the relative speed of the objects increases
Captain Jack Sparrow is pushing a treasure chest across the wooden deck of his trusty ship, The Black Pearl. The chest is much shorter than he is, so his applied force makes an angle of 55.0° below the horizontal. The coefficient of kinetic friction between the chest and the deck has a value of 0.366, and the chest has a mass of 219 kg. Draw a diagram showing all of the forces that are acting on the chest. If a force needs to be broken up into components, show the components and formulas for the components.
A 5.00-kg box is initially at rest on a level surface. The coefficient of static friction between the box and the surface is 0.400. Let g=10m/s/s, and all answers be in newtons. a) Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component downward._______ N answer: 30N (solve step by step) b) Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component upward._______ N (answer: 18.7, solve step by step)
A 78 kg crate rests on a rough horizontal surface. The coefficient of static friction and coefficient of kinetic friction are 0.3 and 0.2, respectively. What would happen if the applied horizontal force is 200 N? Choices: It will remain at rest. The frictional force will be neglected. It will accelerate in the same direction as the horizontal force. It will accelerate in the opposite direction as the horizontal force.