Class 11PhysicsNewton's Laws of Motion and FrictionStatic and Limiting Friction and Minimum Force Required to Move
DifficultHow does static friction oppose motion? On which factors does the value of the coefficient of friction depend?
(N/A) Static friction opposes motion by acting as a self-adjusting force that prevents the initiation of relative motion between two surfaces in contact. It acts in a direction opposite to the applied force that tends to cause motion.
The coefficient of friction $(\mu)$ depends on the following factors:
$1$. The nature of the materials of the two surfaces in contact (e.g.,wood on wood,rubber on concrete).
$2$. The condition of the surfaces,such as their roughness or smoothness (degree of polish).
$3$. The presence of lubricants or contaminants between the surfaces.
The coefficient of friction $(\mu)$ depends on the following factors:
$1$. The nature of the materials of the two surfaces in contact (e.g.,wood on wood,rubber on concrete).
$2$. The condition of the surfaces,such as their roughness or smoothness (degree of polish).
$3$. The presence of lubricants or contaminants between the surfaces.
Explore More
Similar Questions
If a ladder weighing $250\,N$ is placed against a smooth vertical wall and the coefficient of friction between the ladder and the floor is $0.3$,what is the maximum force of friction available at the point of contact between the ladder and the floor?
Calculate the maximum acceleration (in $m s^{-2}$) of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floor is $0.15$ $(g = 10 m s^{-2})$.
$A$ pulling force $F$ making an angle $\theta$ with the horizontal is applied on a block of weight $W$ placed on a horizontal table. If the angle of friction is $\alpha$,then the magnitude of the force required to move the body is equal to
Difficult
View Solution$A$ force $\vec{F} = \hat{i} + 4\hat{j} \text{ N}$ acts on the $1 \text{ kg}$ block shown in the figure. The coefficient of friction between the block and the surface is $\mu = 0.3$. The force of friction acting on the block is:
Difficult
View SolutionIf a pushing force making an angle $\alpha$ with the horizontal is applied on a block of mass $m$ placed on a horizontal table and the angle of friction is $\beta$,then the minimum magnitude of the force required to move the block is
Difficult
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo