Home
Class 10
PHYSICS
A pulley has a velocity ratio 2. but mec...

A pulley has a velocity ratio 2. but mechanical advantage 1-6. Name the pulley and state factors which make the mechanical advantage less than the velocity ratio.

Text Solution

AI Generated Solution

To solve the question, we need to analyze the given information about the pulley and its characteristics. Here’s the step-by-step solution: ### Step 1: Understand the Definitions - **Velocity Ratio (VR)**: It is defined as the ratio of the distance moved by the effort to the distance moved by the load. In this case, the VR is given as 2. - **Mechanical Advantage (MA)**: It is the ratio of the load lifted to the effort applied. Here, the MA is given as 1.6. ### Step 2: Identify the Type of Pulley - Since the velocity ratio (VR) is greater than the mechanical advantage (MA), we can conclude that this is a **single-fixed pulley**. In a single-fixed pulley, the VR is always greater than the MA due to the presence of friction and the weight of the pulley itself. ...
Promotional Banner

Topper's Solved these Questions

  • SPECIMEN PAPER (SOLVED)

    ICSE|Exercise SECTION II|78 Videos
  • SOUND

    ICSE|Exercise DIAGRAM BASED MCQ: |3 Videos
  • SPECIMEN QUESTION PAPER

    ICSE|Exercise QUESTIONS|33 Videos

Similar Questions

Explore conceptually related problems

The lever for which mechanical advantage is less than 1 has:

What is the mechanical advantage of single fixed pulley:-

Name the type of single pulley that has a mechanical advantage greater than one?

State one reason why mechanical advantage is less than the velocity ratio for an actual machine.

A lever of length 9 cm has its load arm 5 cm long and the effort arm is 9 cm long. (a) to which class does it belong ? (b) Draw a diagram of the lever showing the position of the fulcrum F and directions of both the load L and effort E. (c) what is the mechanical advantage and velocity ratio if the efficiency is 100%? (d) What will be the mechanical advantage and velocity ratio if the efficiency becomes 50%?

Mechanical advantage is greater than 1 when the load is greater than the effort.

Class III levers have mechanical advantage less than 1. why are they then used ?

A block and tackle system of pulleys has a velocity ratio 4. What is the value of the mechanical advantage of the given pulley system if it is an ideal pulley system?

Name the pulley which has no gain in mechanical advantage. Explain, why is such a pulley then used ?

ICSE-SPECIMEN PAPER (SOLVED)-SECTION II
  1. A pulley has a velocity ratio 2. but mechanical advantage 1-6. Name th...

    Text Solution

    |

  2. The diagram alongside shows a uniform metre rule of weight 100 gf bein...

    Text Solution

    |

  3. The diagram alongside shows a uniform metre rule of weight 100 gf bein...

    Text Solution

    |

  4. The diagram alongside shows a uniform metre rule of weight 100 gf bein...

    Text Solution

    |

  5. A pulley system with a velocity ratio 4 is used to lift a load of 300 ...

    Text Solution

    |

  6. A pulley system with a velocity ratio 4 is used to lift a load of 300 ...

    Text Solution

    |

  7. Differentiate between energy and power

    Text Solution

    |

  8. Amit weighing 60 kgf climbs up a ladder of height 10 m in 15 minutes. ...

    Text Solution

    |

  9. A coin is placed at the bottom of a glass trough containing water (ref...

    Text Solution

    |

  10. The diagram alongside shows a beam of light (red + blue) incident norm...

    Text Solution

    |

  11. An object of height 2 cm is placed in front of a convex lens of focal ...

    Text Solution

    |

  12. Arrange the following electromagnetic radiations in increasing order o...

    Text Solution

    |

  13. Name the constituent colour of white light for which the deviation p...

    Text Solution

    |

  14. Name the constituent colour of white light for which the refractive ...

    Text Solution

    |

  15. There is a sunken ship at a depth of 50 m in a sea. From the surface o...

    Text Solution

    |

  16. State two differences between the forced and resonant vibrations.

    Text Solution

    |

  17. State two ways by which the frequency of a note given out by a stretch...

    Text Solution

    |

  18. Name the quantity which determines loudness, pitch and quality of a so...

    Text Solution

    |

  19. Two waves A and B given out from a source are of amplitudes 2 : 3 and ...

    Text Solution

    |

  20. In an electric circuit shown alongside, find current in resistor ...

    Text Solution

    |

  21. In an electric circuit shown alongside, find current in resistor ...

    Text Solution

    |