Home
Class 10
PHYSICS
A wooden chair is dragged on the level f...

A wooden chair is dragged on the level floor and brought to the same place. Let the distance covered by 's' and frictional force acted on the chair by the floor be 'f'. What is the work done by the frictional force ?

Text Solution

Verified by Experts

The displacement of the chair is zero. Hence the work done is zero.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • WORK AND ENERGY

    VGS PUBLICATION-BRILLIANT|Exercise QUESTIONS GIVEN IN THE LESSON|36 Videos

  • WORK AND ENERGY

    VGS PUBLICATION-BRILLIANT|Exercise PREVIOUS SUMMATIVE ASSESSMENTS QUESTIONS|2 Videos

  • WORK AND ENERGY

    VGS PUBLICATION-BRILLIANT|Exercise ACTIVITIES|10 Videos

  • WORK , ENERGY AND POWER

    VGS PUBLICATION-BRILLIANT|Exercise LONG ANSWER QUESTIONS|3 Videos

Similar Questions

Explore conceptually related problems

A box is pushed through a distance of 4 m across a floor offering 100n resistance. How much work is done by the resisting force ?

A box is pushed through a distance of 4m across a floor offering 100N resistance. How much work is done by the resisting force ?

Knowledge Check

  • When a ball is moving on plain ground, the work done by the frictional force on the ball is

    A
    positive
    B
    Negative
    C
    zero
    D
    Undefined

  • A block of mass 1 slides down a curved track that is one quadrant of a circle of radius 1m. Its speed at the bottom is 2m/s. The work done by frictional force is:

    A
    8j
    B
    `-8J`
    C
    `4J`
    D
    `-4J`

  • A block of mass 'm' is placed on floor of a lift which is rough. The coefficient of friction between the block and the floor is mu . When the lift falls freely, the block is pulled horizontally on the lift floor. The force of friction is

    A
    `mu mg `
    B
    zero
    C
    `1/2 mu mg `
    D
    `2 mu mg `

    • Similar Questions

    Explore conceptually related problems

    A box is pushed through a distance of 4m across a floor offering 100N resistance. How much work is done by the resisting force?

    A box is pushed through a distance of 4m across a floor offering 100N resistance. How much work is done by the resisting force?

    A body of mass m is pushed with the initial velocity v_(0) up an inclined plane set at an angle theta to the horizontal. The fricitional coefficient is equal to mu . What distance will the body cover before it stops and what work do the frictional forces perform over this distance ?

    A block of mass'm' is placed on floor of a lift which is rough. The coefficient of friction between the block and the floor is mu . When the lift falls freely, the block is pulled horizontally on the lift floor. The force of friction is

    A block of mass 'm' is placed on floor of a lift which is rough. The coefficient of friction between the block and the floor is mu . When the lift falls freely, the block is pulled horizontally on the lift floor. The force of friction is

    Home
    Profile