Home
Class 11
PHYSICS
A fireman of mass 60 kg slides down a po...

A fireman of mass 60 kg slides down a pole. As shown in figure. He is pressing the pole with a force of 600 N. The coefficient of friction between the hands and the pole is `0.5.` With wht acceleration will the fireman slide down `(g=10 m//s^(2))`

A

`1m//s^(2)`

B

`2.5m//s^(2)`

C

`5 m//s^(2)`

D

`10m//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (EVALUATION TEST)|21 Videos
  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (CRITICAL THINKING)|68 Videos
  • FORCE

    TARGET PUBLICATION|Exercise Evaluation Test|16 Videos
  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise Evaluation Test|12 Videos

Similar Questions

Explore conceptually related problems

A fireman of mass 60 kg slides down a pole. He is pressing the pole with a force of 600N. The coefficient of friction between the hands and the pole is 0.5, with what acceleration will the fireman slide down (g=10(m)/(s^2) )

A force of 200N is applied as shown in the figure on block of 3 kg. The coefficient of friction between the block and the wall is 0.3. Find the friction acting on the block. (in N) {Take g = 10 m//s^(2)

A body of mass m slides down an inclined plane making an angle of 45^(@) with the horizontal. If the coefficient of friction between the body and the plane be 0.3, the acceleration of the body is approximately equal to :

A boy of mass 50 kg is climbing a vertical pole at a constant speed. If coefficient of fricition between his palms and the pole is 0.75, then the normal reaction between him and the pole is ("take "=10m//s^(2))

A cylinder of 10 kg is sliding in a plane with an initial velocity of 10 m / s . If the coefficient of friction between the surface and cylinder is 0.5 then before stopping, it will cover. (g=10m//s^(2))

A block of mass m slides down an inclined plane of inclination theta with uniform speed. The coefficient of friction between the block and the plane is mu . The contact force between the block and the plane is

A 20kg box is gently placed on a rough inclined plane of inclination 30^(@) with horizontal. The coefficient of sliding friction between the box and the plane is 0.5.Find the acceleration of the box down the incline.

A block of mass m slides down an inclined plane of inclination theta with uniform speed The coefficient of friction between the block and the plane is mu . The contact force between the block and the plane is .

TARGET PUBLICATION-FRICTION IS SOLIDS AND LIQUIDS -MCQ (COMPETITIVE THINKING)
  1. A plank with a box on it at one end is gradully raised about the other...

    Text Solution

    |

  2. There is a small hole at the bottom of tank filled with water. If tota...

    Text Solution

    |

  3. The working of venturimeter is based on

    Text Solution

    |

  4. In dimension of circal velocity v(0) liquid following through a take a...

    Text Solution

    |

  5. The upper half of an inclined plane with inclination phi is perfectly ...

    Text Solution

    |

  6. A bullet of mass 50 g moving horizontally with a velocity 210 ms^(-1) ...

    Text Solution

    |

  7. A body of weight 64 N is pushed with just enough force to start it mov...

    Text Solution

    |

  8. The three vessels shown in figure have same base area. Equal volumes o...

    Text Solution

    |

  9. A fireman of mass 60 kg slides down a pole. As shown in figure. He is ...

    Text Solution

    |

  10. A tank is filled with water up to a height H. Water is allowed to come...

    Text Solution

    |

  11. A point particle of mass m, moves long the uniformly rough track PQR a...

    Text Solution

    |

  12. A 60 kg weight is dragged on a horizontal surface by a rope upto 2 met...

    Text Solution

    |

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

    Text Solution

    |

  14. The speed of the wind passing over the wings of a small aeroplane is 7...

    Text Solution

    |

  15. A rectangular vessel when full of water takes 10 minutes to be emptied...

    Text Solution

    |

  16. A vessel completely filled with water has holes 'A' and 'B' at depths ...

    Text Solution

    |

  17. A large open tank has two holes in the wall. One is a square hole of s...

    Text Solution

    |

  18. A body of mass 2 kg is being dragged with uniform velocity of 2 m / s ...

    Text Solution

    |

  19. A spherical solild of volume V is made of a material of density rho(1)...

    Text Solution

    |

  20. The heart of a man pumps 5 liters of blood through the arteries per mi...

    Text Solution

    |