(C) The maximum static frictional force (limiting friction) is given by $f_{L} = \mu_{s} N$,where $N = mg$.Given: $m = 2\,kg$,$\mu_{s} = 0.54$,and $g

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(C) The maximum static frictional force (limiting friction) is given by $f_{L} = \mu_{s} N$,where $N = mg$.Given: $m = 2\,kg$,$\mu_{s} = 0.54$,and $g = 10\,m/s^2$.$f_{L} = 0.54 \times 2 \times 10 = 10.8\,N$.The applied horizontal force is $F_{applied} = 2.8\,N$.Since the applied force is less than the limiting friction $(F_{applied} According to the law of static friction,the frictional force adjusts itself to be equal to the applied force when the object is at rest.Therefore,the frictional force is $2.8\,N$.

Class 11 Physics Newton's Laws of Motion and Friction Static and Limiting Friction and Minimum Force Required to Move

Medium

$A$ block of mass $2\,kg$ is at rest on a floor. The coefficient of static friction between the block and the floor is $0.54$. $A$ horizontal force of $2.8\,N$ is applied to the block. What will be the frictional force between the block and the floor (in $.8$)? $(g = 10\,m/s^2)$

A
$8$
B
$5$
C
$2$
D
$10$

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Class 11 Questions

Class 11

Physics Questions

Chapter

Newton's Laws of Motion and Friction

Subtopic

Static and Limiting Friction and Minimum Force Required to Move

Which of the following forces does not depend on the velocity: the frictional force between the contact surfaces of two solids or the viscous force?

Easy

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The maximum static frictional force is

Easy

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If the coefficient of friction is $\sqrt{3}$,what is the angle of friction between the two surfaces in contact (in $^{\circ}$)?

Medium

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$A$ body of mass $1 \, kg$ rests on a horizontal floor with which it has a coefficient of static friction $\frac{1}{\sqrt{3}}$. It is desired to make the body move by applying the minimum possible force $F \, N$. The value of $F$ will be (Nearest Integer). [Take $g = 10 \, m s^{-2}$]

DifficultJEE MAIN 2021

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$A$ $10\, kg$ block is placed on a horizontal surface as shown. If an external horizontal force $F = 50\, N$ is applied,find the friction force acting on the block. (Take $g = 10\, m/s^2$)

Medium

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$A$ block of mass $2\,kg$ is at rest on a floor. The coefficient of static friction between the block and the floor is $0.54$. $A$ horizontal force of $2.8\,N$ is applied to the block. What will be the frictional force between the block and the floor (in $.8$)? $(g = 10\,m/s^2)$

Similar Questions

Which of the following forces does not depend on the velocity: the frictional force between the contact surfaces of two solids or the viscous force?

The maximum static frictional force is

If the coefficient of friction is $\sqrt{3}$,what is the angle of friction between the two surfaces in contact (in $^{\circ}$)?

$A$ body of mass $1 \, kg$ rests on a horizontal floor with which it has a coefficient of static friction $\frac{1}{\sqrt{3}}$. It is desired to make the body move by applying the minimum possible force $F \, N$. The value of $F$ will be (Nearest Integer). [Take $g = 10 \, m s^{-2}$]

$A$ $10\, kg$ block is placed on a horizontal surface as shown. If an external horizontal force $F = 50\, N$ is applied,find the friction force acting on the block. (Take $g = 10\, m/s^2$)

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