A block of mass 2 , kg is kept on the floor. | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Given: Mass of the block $m = 2 \, kg$,coefficient of static friction $\mu_s = 0.4$,applied force $F = 2.5 \, N$,and acceleration due to gravity $

Vedclass · Accepted Answer

$2.5$

Vedclass · Answer

(A) Given: Mass of the block $m = 2 \, kg$,coefficient of static friction $\mu_s = 0.4$,applied force $F = 2.5 \, N$,and acceleration due to gravity $g = 9.8 \, m/s^2$.The limiting friction (maximum static friction) is given by $f_{max} = \mu_s N = \mu_s mg$.Substituting the values: $f_{max} = 0.4 	imes 2 	imes 9.8 = 7.84 \, N$.Since the applied force $F = 2.5 \, N$ is less than the limiting friction $f_{max} = 7.84 \, N$,the block will not move.According to the laws of static friction,when the applied force is less than the limiting friction,the static frictional force is equal to the applied force.Therefore,the frictional force acting on the block is $2.5 \, N$.

$A$ block of mass $2 \, kg$ is kept on the floor. The coefficient of static friction is $0.4$. If a force $F$ of $2.5 \, N$ is applied on the block as shown in the figure,the frictional force between the block and the floor will be ........ $N$.

Similar Questions

The coefficient of friction $\mu$ and the angle of friction $\lambda$ are related as

$A$ body of mass $m$ is kept on a rough horizontal surface (coefficient of friction $= \mu$). $A$ horizontal force is applied on the body,but it does not move. The resultant of the normal reaction and the frictional force acting on the object is given by $F$,where $F$ is:

$A$ body of weight $50 \,N$ is placed on a horizontal surface as shown in the figure. The minimum force required to move the body is $28.28 \,N$. The frictional force and the normal reaction are respectively.

Impending relative motion is opposed by which type of friction?

The limiting value of static friction between two contact surfaces is ...........

Vedclass Test Series

Exam Paper Generator

Online Exam Module