Home
Class 11
PHYSICS
A force of 5 N, making an angle theta wi...

A force of 5 N, making an angle `theta` with the horizontal, actig on an object displaces it by 0.4 m along the horizontal direction. If the object gains kinetic energy of 1J. The horizontal component of the force is

A

1.5 N

B

2.5 N

C

3.5 N

D

4.5 N

Text Solution

Verified by Experts

The correct Answer is:
B
Work done on the body = K.E. gained by the body
`Fs cos theta = 1 rArr F cos theta = (1)/(s)=(1)/(0.4)=2.5 N`
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY , POWER AND COLLISION

    ERRORLESS |Exercise Ordinary Thinking (Objective Questions) (Work Done by Variable Force)|26 Videos

  • WORK , ENERGY , POWER AND COLLISION

    ERRORLESS |Exercise Ordinary Thinking (Objective Questions) (Conservation of Energy and Momentum)|87 Videos

  • WAVES AND SOUND

    ERRORLESS |Exercise SET|25 Videos

  • WORK, ENERGY, POWER & COLLISION

    ERRORLESS |Exercise Assertion|30 Videos

Similar Questions

Explore conceptually related problems

A force of 4 N is acting at an angle of 30^(@) to the horizontal. Find its component along axeses.

When a body is thrown with a velocity u making an angle theta with the horizontal plane, the maximum distance covered by it in horizontal direction is

Pulling force making an angle theta to the horizontal is applied on a block of weight W placed on a horizontal table. If the angle of friction is alpha , then the magnitude of force is alpha , then the magnitude of force required to move the body is equal to

Pushing force making an angle theta to the horizontal is applied on a block of weight W placed on a horizontal table . If the angle of friction is phi , magnitude of force required to move the body is equal to :

A wedge of mass M makes an angle theta with the horizontal. The wedge is placed on horizontal frictionless surface. A small block of mass m is placed on the inclined surface of wedge. What horizontal force F must be applied to the wedge so that the force of friction between the block and wedge is zero ?

A particle is projected with a velocity u making an angle theta with the horizontal. The instantaneous power of the gravitational force

A particle is projeced with a velocity u making an angle theta with the horizontal. The instantaneous power of the gravitational force

ERRORLESS -WORK , ENERGY , POWER AND COLLISION-Self Evaluation Test
  1. A force of 5 N, making an angle theta with the horizontal, actig on an...

    Text Solution

    |

  2. How much work does a putting force of 40 N do on the 20 kg box in pull...

    Text Solution

    |

  3. A horizontal force of 5 N is required to maintain a velocity of 2 m / ...

    Text Solution

    |

  4. Work done in time t on a body of mass m which is accelerated from rest...

    Text Solution

    |

  5. What is the shape of the graph between the speed and kinetic energy of...

    Text Solution

    |

  6. When a body moves with some friction on a surface

    Text Solution

    |

  7. A bullet of mass m moving with velocity upsilon(1) strikes a suspended...

    Text Solution

    |

  8. There will be decrease in potential energy of the system, if work is d...

    Text Solution

    |

  9. The slope of kinetic energy displacement curve of a particle in motion...

    Text Solution

    |

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

    Text Solution

    |

  11. A body of mass 2 kg slides down a curved track which is quadrant of a ...

    Text Solution

    |

  12. The kinetic energy of a body decreases by 36% the decrease in its mome...

    Text Solution

    |

  13. A bomb of mass 3 m kg explodes into two pieces of mass m kg and m kg ...

    Text Solution

    |

  14. Which one of the following statement does not hold good when two balls...

    Text Solution

    |

  15. A neutron travelling with a velocity v and kinetic energy E collides p...

    Text Solution

    |

  16. A body of mass m(1) moving with uniform velocity of 40 m/s collides w...

    Text Solution

    |

  17. Six identical balls are lined in a straight groove made on a horizonta...

    Text Solution

    |

  18. A wooden block of mass M rests on a horizontal surface. A bullet of ma...

    Text Solution

    |

  19. A ball moving with speed v hits another identical ball at rest. The tw...

    Text Solution

    |

  20. A bag of sand of mass M is suspended by a string. A bullet of mass m i...

    Text Solution

    |