Home
Class 12
PHYSICS
In the figure shown, a person wants to r...

In the figure shown, a person wants to raise a block lying on the ground to a height h. In both the cases if time required is the same, then in which case he has to exert more force. Assume pulleys and strings are light

A

Figure (i)

B

Figure (ii)

C

Same in both

D

Cannot be determined

Text Solution

Verified by Experts

The correct Answer is:
A

If force applied by man is F. then in first figure force transferred to the block is F, while in second figure force transferred to the block is 2F.
Promotional Banner

Topper's Solved these Questions

  • DYNAMICS OF A PARTICLE

    VMC MODULES ENGLISH|Exercise LEVEL 2|49 Videos
  • DYNAMICS OF A PARTICLE

    VMC MODULES ENGLISH|Exercise LEVEL 2 ( NUMERICAL TYPE FOR JEE MAIN )|16 Videos
  • DYNAMICS OF A PARTICLE

    VMC MODULES ENGLISH|Exercise LEVEL 0 (LONG ANSWER TYPE)|4 Videos
  • DC CIRCUIT

    VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE|68 Videos
  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-G|10 Videos

Similar Questions

Explore conceptually related problems

In the figure shown, a person wants to raise a block lying on the ground to a height h. in both the cases if time required is same then in which case he has to exert more force. Assume pulleys and strings light.

In fig., a person wants to rise a block lying on the ground to a height h. In both the cases, if the time required is same, then in which case he has to exert more force? Assuem pulleys and strigns light.

In the figure shown , a person wants to raise a block lying on the ground to a height h . In which case he has to exert more force. Assume pulleys and strings are light .

In the figure show , a person wants to raise a block lying on the ground to a height h . In which case he has to exert more force. Assume pulleys and strings are light .

The block has to be raised to a height L in the same time t. In which case force required is more ?

Both the blocks shown in figure have same mass 'm' . All the pulley and strings are massiess.

A solid sphere is kept over a smooth surface as shown in figure. It is hit by a cute at height h above the centre C. If the surface is rough, then after hitting the sphere, in which case the force of friction is in forward direction.

In the figure shown, a person pulls a light string with a constant speed u=10m//s . The other end of the string is tied to a very small block which moves on a smooth horizontal surface. Find the angle 'theta' when the block 3 leaves the surface . Take g=10m//s^(2).

In the figure, at the free end of the light string, a force F is supplied to keep the suspended mass of 18 kg at rest. Then the force exerted by the ceiling on the system (assume that the string segments are vertical and the pulleys are light and smooth) is:( g=10(m)/(s^2) )

in figure shown AB is a plane mirror of length 40cm placed at a height 40cm from ground . There is a light source S at a point on the ground ,Find the maximum and minimum height of a man(eye height)required to see the image of the source If he is standing at a point A on ground shown in figure.

VMC MODULES ENGLISH-DYNAMICS OF A PARTICLE-LEVEL 1
  1. A small particle of mass 0.36g rests on a horizontal turntable at a di...

    Text Solution

    |

  2. A car is moving with constant speed of 10m/s on a horizontal circular ...

    Text Solution

    |

  3. In the figure shown, a person wants to raise a block lying on the grou...

    Text Solution

    |

  4. The block of mass m is at rest. Find the tension in the string A .

    Text Solution

    |

  5. The velocity v of the pulley is:

    Text Solution

    |

  6. The velocity of the block B is:

    Text Solution

    |

  7. Calculate the tension in the string shown in the figure. All the surfa...

    Text Solution

    |

  8. Find the acceleration of the block of mass M in the situation shown in...

    Text Solution

    |

  9. In the arrangement shown, velocity of block A is 10 m/s at a moment. T...

    Text Solution

    |

  10. In the arrangement shown, the pulleys and strings are massless. The ac...

    Text Solution

    |

  11. In the pulley-block arrangement shown in figure , find the relation be...

    Text Solution

    |

  12. A 50 kg person stand on a 25 kg platform. He pulls on the rope which ...

    Text Solution

    |

  13. Consider the situation shown in the figure. Find acceleration of...

    Text Solution

    |

  14. Consider the situation shown in the figure. Find acceleration of...

    Text Solution

    |

  15. In the pulley-block arrangement shown in figure , find the relation be...

    Text Solution

    |

  16. Find the relation between acceleration a(1) and a(2)

    Text Solution

    |

  17. A sphere of radius R is in contact with a wedge. The point of contact ...

    Text Solution

    |

  18. A block can slide on a smooth inclined plane of inclination theta kept...

    Text Solution

    |

  19. A block is sliding along an inclined plane as shown in figure . If the...

    Text Solution

    |

  20. In the figure the wedge is pushed with an acceleration of sqrt3 m//s ^...

    Text Solution

    |