Home
Class 11
PHYSICS
A boy presses a book against the front...

A boy presses a book against the front wall such that the book do not move the force of friction between the wall and the book is

A

towards right

B

towards left

C

downwards

D

upwards

Text Solution

Verified by Experts

The correct Answer is:
d
Promotional Banner

Topper's Solved these Questions

  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (II Very Short Answer Question)|62 Videos
  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (III Short Answer Question )|42 Videos
  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise EVALUATION (TEXTBOOK QUESTIONS & ANSWERS) (V Numerical Problems)|30 Videos
  • KINETIC THEORY OF GASES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (VI. Conceptual Questions.)|8 Videos
  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWER (NUMERICAL PROBLEMS)|60 Videos

Similar Questions

Explore conceptually related problems

A block is mass m moves on as horizontal circle against the wall of a cylindrical room of radius R. The floor of the room on which the block moves is smooth but the friction coefficient between the wall and the block is mu . The block is given an initial speed v_0 . As a function of the speed v write a. the normal force by the wall on the block. b. the frictional force by the wall and c. the tangential acceleration of the block. d. Integrate the tangential acceleration ((dv)/(dt)=v(dv)/(ds)) to obtain the speed of the block after one revoluton.

In a rotor, a hollow vertical cylindrical structure rotates about its axis and a person rests against the inner wall. At a particular speed of the rotor, the floor below the person is removed and the person hangs resting against the wall without any floor. If the radius of the rotor is 2m and the coefficient of static friction between the wall and the person is 0.2, find the minimum speed at which the floor may be removed Take g=10 m/s^2 .

A block of mass m slips on a rough horizontal table under the action of horiozontal force applied to it. The coefficient of friction between the block and the table is mu . The table does not move on the floor. Find the total frictional force aplied by the floor on the legs of the table. Do you need the friction coefficient between the table and the floor or the mass of the table ?

A boy (30 kg) sitting on his horse whips it. The horse speeds up at an average acceleration of 2.0 m/s^2 . A. If the boy does not slide back, what is the force of friction exerted by the horse on the boy? b.If the boy slides back during the acceleration, what can be said about the coefficient of static friction between the horse and the boy. Take g = 10 m/s^2

A book is lying on the table what is the angle between the action of the book on the table and the reaction of the table on the book

Two bodies A and B of masses 5 kg and 10 kg in contact with each other rest on a table against a rigid wall . The coefficient of friction between the bodies and the table is 0.15. A force of 200 N is applied horizontally to A. What are (a) the reaction of the partition (b) the action-reaction forces between A and B ? What happens when the wall is removed? Does the answer to (b) change, when the bodies are in motion? Ignore the difference between mu_s and mu_k

A 250 g block slides on aeroug horizontal table. Find the work donen by the frictinal force in bringing the block to rest if it is initially moving at a speed of 40 cm/s. If the friction coefficient between te table and the block is 0.1 how far does the block move before coming to rest?

A car moving at a speed of 36 km/hr is taking a turn on a circular road of radius 50 m. A small wooden plate is kept on the seat with its plane perpendicular to the radius of the circular road figure. A small bock of mass 100 g is kept on the seat which rests against the plate. The friction coefficient between the block and the plate is mu=0.58. a. Find the normal contact force exerted by the plate on the block. b. The plate is slowly turned so that the angle between the normal to the plate and the radius of the road slowly increases Find the angle at which the block will just start sliding on the plate.

A uniform ladder of length 10.0 m and mass 16.0 kg is resting against a vertical smooth wall making an angle of 37^@ with it. An electrian weighing 60.0 kg climbs up the ladder. If the stays on the ladder at a point 8.00 m from the lower end, what will be normal force and the force of friction on the ladder by the ground? What should be the minimum coefficient of friction for the electrician to work safely?

PREMIERS PUBLISHERS-LAW OF MOTION -OTHER IMPORTANT QUESTIONS & ANSWERS (Multiple choice Questions )
  1. A 40N force pulls a system of three masses on a horizontal frictionles...

    Text Solution

    |

  2. An object placed on an inclined plane starts sliding when the angle o...

    Text Solution

    |

  3. A boy presses a book against the front wall such that the book do ...

    Text Solution

    |

  4. A cyclist travels with a speed of 36 km^(-1) if the angle of inclina...

    Text Solution

    |

  5. Identify the correct statement

    Text Solution

    |

  6. A particle revolves round a circular path the acceleration of the pa...

    Text Solution

    |

  7. When milk is churned cream gets separated due to

    Text Solution

    |

  8. Statement 1 represent assertion And statement 2 represents reason whic...

    Text Solution

    |

  9. A body is moving in a circular path with acceleration a if its vel...

    Text Solution

    |

  10. Assertion : on a rainy day it is difficult to drive a bus at high spee...

    Text Solution

    |

  11. For the following situation which of the following is correct When ...

    Text Solution

    |

  12. Assertion : Usage of ball bearing between two moving parts in a machin...

    Text Solution

    |

  13. Which one of the following statement is correct for the following sit...

    Text Solution

    |

  14. Which of the following is a correct statement when a car is moving a...

    Text Solution

    |

  15. When a stone tied to the end of a string whireled in a circular pat...

    Text Solution

    |

  16. The condition for skidding is

    Text Solution

    |

  17. A body is moving with a constant speed v in a circle of radius r. its ...

    Text Solution

    |

  18. Which one of the following statement is correct for the following sit...

    Text Solution

    |

  19. Select the odd man out from the following statement

    Text Solution

    |

  20. When a particle is in uniform motion it does not have

    Text Solution

    |