Home
Class 11
PHYSICS
A flywheel is attached to an engine to...

A flywheel is attached to an engine to

A

increase its speed

B

decrease its speed

C

help in overcoming the dead point

D

decrease its energy

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • System of particles & rotational Motion

    SL ARORA|Exercise EXERCISE|353 Videos

  • ROTATIONAL MOTION

    SL ARORA|Exercise Problem for self practice|90 Videos

  • Thermal Properties of Matter

    SL ARORA|Exercise Exercise|449 Videos

Similar Questions

Explore conceptually related problems

Bhuvan and Company has invented a fuel saving instrument which can reduce the consumption of petrol and diesel if it is attached in the engine of vehicle. Suggest any two media which the company must select to advertise for this product and why.

An engine can move at the speed of 20/3 m/s without any wagon attached and reduction in the speed of the train is directly proportional to the square root of the number of wagons attached to the engine. When there are 9 wagons attached its speed is 5 m/s. The greatest number of wagons with which the engine can move is :

A flywheel is rotating at an angular speed of 150 rpm. If the moment of inertia of the flywheel somehow decreases from 10kgm^(2) to 4kgm^(2) , then what will be the new angular speed of the flywheel?

The radius of gyration of flywheel is (3//pi)m and its mass is 1 kg. If the speed of the flywheel is changed from 20 rpm to 60 rmp, then the work done would be

The angular position of a point over a rotating flywheel is changing according to the relation, theta = (2t^3 - 3t^2 - 4t - 5) radian. The angular acceleration of the flywheel at time, t = 1 s is

The flywheel of a steam engine runs with a constant angular velocity of 160 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 2.2 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of the wheel during the slowdown? (b) How many revolutions does the wheel make before stopping? ( c) At the instant the flywheel is turning at 75 rev/min, what is the tangential component of the linear acceleration of a flywheel particle that is 50 cm from the axis of rotation? (d) What is the magnitude of the net linear acceleration of the particle in ( c) ?

A 40 kg flywheel in the formof a uniform circlular disc of 1m radius is making 120 rpm. Calculate the angular momentum.

Carnot Engine

SL ARORA-System of particles & rotational Motion-EXERCISE
  1. Find the ratio of the radii of gyration of a circular disc and a circu...

    Text Solution

    |

  2. The radius of gyration of a disc of mass 100 g and radius 5 cm about a...

    Text Solution

    |

  3. A flywheel is attached to an engine to

    Text Solution

    |

  4. The angular momentum of a body with mass (m) moment of inertia (I) and...

    Text Solution

    |

  5. Moment of inertia of a body is 1 kg m2. If the body makes 2 revolution...

    Text Solution

    |

  6. A constant torque of 31.4 N-m id exterted on a pivoted wheel. If the a...

    Text Solution

    |

  7. A particle performs uniform circular motion with an angular momentum L...

    Text Solution

    |

  8. Two bodies have their moments of inertia I and 2 I respectively about ...

    Text Solution

    |

  9. The angular momentum of a system of particles is conserved

    Text Solution

    |

  10. The motion of planets in the solar system is an exmaple of the conserv...

    Text Solution

    |

  11. A diver in a swimming pool bends his head before diving, because it

    Text Solution

    |

  12. If a person standing on a rotating disc stretches out his hands, the a...

    Text Solution

    |

  13. A dancer is rotating on smooth horizontal floor with an angular moment...

    Text Solution

    |

  14. A round disc of moment of inertia I2 about its axis perpendicular to i...

    Text Solution

    |

  15. A uniform disc of mass M and radius R is rotating in a horizontal plan...

    Text Solution

    |

  16. A thin circular ring of mass m and radius R is rotating about its axis...

    Text Solution

    |

  17. A loop of mass M and radius R is rolling on a smooth horizontal surfac...

    Text Solution

    |

  18. A sphere of moment of inertia 'I' and mass 'm' rolls down on an inclin...

    Text Solution

    |

  19. A disc is rolling without slipping. The ratio of its rotational kineti...

    Text Solution

    |

  20. A solid sphere is rolling without slipping on a horizontal plane. The ...

    Text Solution

    |