Home
Class 11
PHYSICS
Th ework done in moving a body of mass 4...

Th ework done in moving a body of mass `4 kg` with uniform velocity of `5 ms^(-1)` for `10` second on a surface of `mu = 0.4 is (take g= 9.8m//s^(2))`

A

584 J

B

784 J

C

684 J

D

484 J

Text Solution

Verified by Experts

The correct Answer is:
`(2)`

`W = mumgS = mumg (vt)`
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -III|54 Videos
  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE IV|43 Videos
  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -II (C.W)|75 Videos
  • WAVES

    NARAYNA|Exercise Exercise-IV|56 Videos
  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level-VI (Integer)|12 Videos

Similar Questions

Explore conceptually related problems

Th work done in moving a body of mass 4 kg with uniform velocity of 5 ms^(-1) for 10 second on a surface of mu = 0.4 is (take g= 9.8m//s^(2))

What force is required to move a body of mass 1kg with a uniform velocity of 1m//s ?

A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1) . What is the work done ?

A body of mass 10 kg is dropped to the ground from a height of 10 metres. The work done by the gravitational force is (g=9.8m//sec^(2))

Find the work done of move an object of mass 3 kg to a height of 20 m from the ground (Take g =10ms^(-2) ).

On a rough horizontal surface, a body of mass 2 kg is given a velocity of 10 m / s . If the coefficient of friction is 0.2 and g=10m//s^(2) , the body will stop after covering a distance of

NARAYNA-WORK , ENERGY & POWER -EXERCISE -II (H.W)
  1. Velocity-time graph of a particle of mass (2 kg) moving in a straight ...

    Text Solution

    |

  2. The displacement of a body of mass 2 kg varies with time t as S = t^(2...

    Text Solution

    |

  3. Th ework done in moving a body of mass 4 kg with uniform velocity of 5...

    Text Solution

    |

  4. A body is acted upon by a force which is inversely proportional to the...

    Text Solution

    |

  5. A particle of mass 0.5 kg is displaced from position vec r(1)(2,3,1) t...

    Text Solution

    |

  6. Kinetic energy of a particle moving in a straight line varies with tim...

    Text Solution

    |

  7. A force F acting on a particle varies with the position x as shown in ...

    Text Solution

    |

  8. A force vec F=(2 hat i + 3hat j \- 4 hat k)N acts on a particle moves ...

    Text Solution

    |

  9. Two forces each of magnitude 10 N act simultaneously on a body with th...

    Text Solution

    |

  10. A body is displaced from (0,0) to (1 m, 1m) along the path x = y by a ...

    Text Solution

    |

  11. A body of mass 5 kg at rest under the action of a force which gives i...

    Text Solution

    |

  12. A particle is made to move from the origin in three spells of equal di...

    Text Solution

    |

  13. A position dependent force F ia acting on a particle and its force-pos...

    Text Solution

    |

  14. A force F acting on an object varies which distance x as shown in the ...

    Text Solution

    |

  15. A body of mass m is allowed to fall with the help of string with downw...

    Text Solution

    |

  16. Acceleration versus time graph of a particle moving in a straight line...

    Text Solution

    |

  17. A rubber ball falling from a height of 5 m rebounds from hard floor to...

    Text Solution

    |

  18. An elastic spring is compressed between two blocks of masses 1 kg and ...

    Text Solution

    |

  19. A block of mass 2 kg is on a smooth horizontal surface. A light of for...

    Text Solution

    |

  20. n' identical cubes each of mass 'm' and edge 'L' are on a floor. If th...

    Text Solution

    |