When a body is moving on a surface, force of friction is called

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4-2.Friction

easy

When a body is moving on a surface, the force of friction is called

Static friction

Dynamic friction

Limiting friction

Rolling friction

Solution

The objects have a relative motion between the surfaces which could be a body moving over a static surface, a static body on a moving surface, or both are moring but with different relative velocities. The term for this case is related to the term kinetic energy and is often called dynamic friction.

Standard 11

Physics

A bag is gently dropped on a conveyor belt moving at a speed of $2\,m / s$. The coefficient of friction between the conveyor belt and bag is $0.4$ Initially, the bag slips on the belt before it stops due to friction. The distance travelled by the bag on the belt during slipping motion is $…..m$ [Take $g=10\,m / s ^{-2}$ ]

medium

(JEE MAIN-2022)

$Assertion$ : On a rainy day it is difficult to drive a car or bus at high speed.
$Reason$ : The value of coefficient of friction is lowered due to wetting of the surface

easy

(AIIMS-1999)

A cylinder of mass $10\,kg$ is sliding on a plane with an initial velocity of $10\,m/s$. If coefficient of friction between surface and cylinder is $ 0.5$, then before stopping it will describe …………. $\mathrm{m}$

medium

A small ball of mass $m$ starts at a point $A$ with speed $v_0$ and moves along a frictionless track $AB$ as shown. The track $BC$ has coefficient of friction $\mu $. The ball comes to stop at $C$ after travelling a distance $L$ which is

hard

(JEE MAIN-2014)

A rope of length $L$ and mass $M$ is being pulled on a rough horizontal floor by a constant horizontal force $F$ = $Mg$ . The force is acting at one end of the rope in the same direction as the length of the rope. The coefficient of kinetic friction between rope and floor is $1/2$ . Then, the tension at the midpoint of the rope is

hard

When a body is moving on a surface, the force of friction is called

Solution

Similar Questions

$Assertion$ : On a rainy day it is difficult to drive a car or bus at high speed. $Reason$ : The value of coefficient of friction is lowered due to wetting of the surface

A cylinder of mass $10\,kg$ is sliding on a plane with an initial velocity of $10\,m/s$. If coefficient of friction between surface and cylinder is $ 0.5$, then before stopping it will describe …………. $\mathrm{m}$

A small ball of mass $m$ starts at a point $A$ with speed $v_0$ and moves along a frictionless track $AB$ as shown. The track $BC$ has coefficient of friction $\mu $. The ball comes to stop at $C$ after travelling a distance $L$ which is

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$Assertion$ : On a rainy day it is difficult to drive a car or bus at high speed.
$Reason$ : The value of coefficient of friction is lowered due to wetting of the surface