Home
Class 11
PHYSICS
A body moving with a kinetic energy of 6...

A body moving with a kinetic energy of `6J` cmes to rest at a distance of `1m` due to a retarding force of

A

4N

B

6 N

C

5 N

D

8 N

Text Solution

Verified by Experts

The correct Answer is:
`(2)`
`W = Delta KE Rightarrow KE_(i) = F_(ret)S`
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -1 (H.W)|60 Videos

  • WORK , ENERGY & POWER

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

  • WORK , ENERGY & POWER

    NARAYNA|Exercise (C.U.Q ) COLLISIONS|14 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

A force of 20N is applied on a body of mass 5 kg resting on a horizontal plane. The body gains a kinetic energy of 10 after is moves a distance 2m. The fricitional force is

Two bodies of unequal mass are moving in the same direction with equal kinetic energy. The two bodies are brought to rest by applying retarding force of same magnitude. How would the distance moved by them before coming to rest compare ?

A body moving on the ground with a velocity of 15m//s comes to rest after covering a distance of 25m If acceleration due to gravity is 10m//s^(2) Calculate the coefficient of friction between the ground and the body .

A body of mass 5 kg is acted upon by a variable force.the force varies with the distance covered by the body. Find the kinetic energy of the body when the body has covered 30 m distance ? Assume that the body starts from rest.

A body falling from a vertical height of 10 m pierces through a distance of 1 m in sand. It faces and average retardation in sand. It faces an average retardation in sand equal to (g = acceleration due to gravity)

A body is thrown up with a kinetic energy of 10J. If it attains a maximum height of 5m, find the mass of the body.

A lorry and a car, moving with the same kinetic energy are brought to rest by application of brakes which provied equal retarding forces. Which one of them will come to rest in a shorter distance ?

A lorry and a car moving with the same kinetic energy are brought to rest by the application of brakes which provides equal retarding forces. Which of them will come to rest in a shorter distance?

A truck and a car moving with the same kinetic energy are brought to rest by the application of brakes which provide equal retarding forces. Which of them will come to rest in a shorter distance?

NARAYNA-WORK , ENERGY & POWER -EXERCISE - 1 (C.W)
  1. A spring with spring constant K when stretched through 1 cm, the poten...

    Text Solution

    |

  2. The energy required to accelerate a car from 10 m/s to 20 m / s is how...

    Text Solution

    |

  3. A body moving with a kinetic energy of 6J cmes to rest at a distance o...

    Text Solution

    |

  4. A ship of mass 3xx10^7kg initially at rest, is pulled by a force of 5x...

    Text Solution

    |

  5. A vehicle of mass 1000 kg is moving with a velocity of 15 ms^(-1).It i...

    Text Solution

    |

  6. The workdone to accelerate a body from 30 ms^(-1) to 60 ms^(-1) is thr...

    Text Solution

    |

  7. A block of mass 4 kg is initially at rest on a horizontal frictionless...

    Text Solution

    |

  8. On increasing the speed of a bosy to 2ms^(-1), its kinetic energy is q...

    Text Solution

    |

  9. A bullet of mass 10 gm strikes a target at 400 m//s velocity and does...

    Text Solution

    |

  10. An object is acted on by a retarding force of 10 N and at a particular...

    Text Solution

    |

  11. A body of mass 2 kg is thrown up vertically with kinetic energy of 490...

    Text Solution

    |

  12. A body is falling under gravity . When it loses a gravitational potent...

    Text Solution

    |

  13. A block of mass 4 kg slides on a horizontal frictionless surface with ...

    Text Solution

    |

  14. At what height above the ground must a mass of 5 kg be to have its PE ...

    Text Solution

    |

  15. A body of mass 2kg is projected vertically up with velocity 5ms^(-1). ...

    Text Solution

    |

  16. A force F = (2 vec i + vec j + vec k)N is acting on a particle moving ...

    Text Solution

    |

  17. The power of water pump is 4 kW. If g=10 ms^(-2), the amount of water ...

    Text Solution

    |

  18. From a waterfall, water is falling down at the rate of 100kg / s on th...

    Text Solution

    |

  19. A crane can lift up 10,000 kg of coal in 1 hour form a mine of 180 m d...

    Text Solution

    |

  20. A pump is required to lift 600 kg of water per minute from a well 25 m...

    Text Solution

    |