Question

You push a large crate across the floor at constant speed, exerting a horizontal force $F$ on the crate. There is friction between the floor and the crate. The force of friction has a magnitude that is a) zero. b) $F$. c) greater than $F$. information. d) less than $F$. e) impossible to quantify without further

Name: Problem 12, Chapter 4: University Physics with Modern Physics
Uploaded: 2021-05-11T13:30:43-08:00
Duration: 59 s
Channel: Shahab Ullah
Description: You push a large crate across the floor at constant speed, exerting a horizontal force F on the crate. There is friction between the floor and the crate. The force of friction has a magnitude that is a) zero. b) F. c) greater than F. information. d) less than F. e) impossible to quantify without further

   You push a large crate across the floor at constant speed, exerting a horizontal force $F$ on the crate. There is friction between the floor and the crate. The force of friction has a magnitude that is
a) zero.
b) $F$.
c) greater than $F$. information.
d) less than $F$.
e) impossible to quantify without further

University Physics with Modern Physics

Wolfgang Bauer, Gary… 2nd Edition

Chapter 4, Problem 12

Instant Answer

Solved by Expert Shahab Ullah

05/11/2021

Step 1

Step 1: We know that the net force acting on an object is given by the equation $F_{net} = ma$, where $m$ is the mass of the object and $a$ is its acceleration. Show more…

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You push a large crate across the floor at constant speed, exerting a horizontal force $F$ on the crate. There is friction between the floor and the crate. The force of friction has a magnitude that is a) zero. b) $F$. c) greater than $F$. information. d) less than $F$. e) impossible to quantify without further

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Key Concepts

Force Equilibrium

Force equilibrium occurs when the sum of all forces acting on an object is zero, resulting in no acceleration. In the scenario of a constant speed, the horizontal applied force must be equal in magnitude to the frictional force, maintaining balance.

Friction

Friction is a force that opposes relative motion between surfaces in contact. In the context of kinetic friction, which applies when objects are in motion, its magnitude adjusts to counteract the applied force when the object is moving at a constant speed, ensuring there is no net force.

Newton's First Law

Newton's First Law states that an object in motion will remain in motion at a constant velocity if the net force acting on it is zero. This principle is critical for understanding why, when a crate is pushed at constant speed, the applied force is exactly balanced by friction.

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