Home
Class 12
PHYSICS
A cylinder of mass M and radius R is res...


A cylinder of mass M and radius R is resting on two corner edges A and B as shown in figure. The normal reaction at the edges A and B are: (Neglect friction)

A

`N_(A)=sqrt(2)N_(B)`

B

`N_(B)=sqrt(3)N_(A)`

C

`N_(A)=(Mg)/(2)`

D

`N_(B)=(2sqrt(3)Mg)/(5)`

Text Solution

Verified by Experts

The correct Answer is:
B, C


For equilibrium `N_(A)cos60^(@)+N_(B)cos30^(@)=Mg`
and `N_(a)sin60^(@)=N_(B)sin30^(@)`
On solving `N_(B)=sqrt(3)N_(A):N_(A)=(Mg)/(2)`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    RESONANCE|Exercise PT-01|30 Videos
  • TEST PAPERS

    RESONANCE|Exercise Pt-02|30 Videos
  • TEST PAPERS

    RESONANCE|Exercise PART - II PHYSICS|107 Videos
  • SIMPLE HARMONIC MOTION

    RESONANCE|Exercise Advanced Level Problems|13 Videos
  • TEST SERIES

    RESONANCE|Exercise PHYSICS|127 Videos

Similar Questions

Explore conceptually related problems

A cylinder of mass 1/sqrt(3)kg is placed on the corner of two inclined planes as shown in the figure.Find the normal reaction in newtons at contact point of cylinder with the slope of inclination 30^(@) g=10m/s^(2)

A block of mass m is at rest on wedge as shown in figure. Let N be the normal reaction between two and f the force of friction, then choose the wrong option.

Two blocks A and B of equal masses are released on two sides of a fixed wedge C as shown in figure. Find the acceleration of centre of mass of blocks A and B. Neglect friction.

A solid cylinder of mass M and radius 2R is rolled up on an incline with the help of a plank of mass 2M as shown in the figure. A constant force F is acting on the plank parallel to the incline. There is no slipping at any of the contact. The friction force between the plank and cylinder is given by:

A cylinder of mass m and radius r rests on two supports of the same height (Fig. ). One support is stationary, while the other slides from under the cylinder at a velocity v. Determine the force of normal pressure N exerted by the cylinder on the stationary support at the moment when the distance between points A and B of the supports is Ab = r sqrt(2) , assuming that the supports wery very close to each other at the initial instant. The friction between the cylinder and the supports should be neglected.

Two blocks A and B of mass 10 kg and 40 kg are connected by an ideal string as shown in the figure. Neglect the masses of the pulleys and effect of friction. (g = 10 m/s2) А B 45° Fixed 45°

Two blocks A and B of mass 10 kg and 40 kg are connected by an ideal string as shown in the figure. Neglect the masses of the pulleys and effect of friction. (g = 10 m/s2) A B 45° Fixed 45°

A uniform cylinder of mass M and radius R is placed on a rough horizontal board, which in turn is placed on a smooth surface. The coefficient of friction between the board and the cylinder is mu . If the board starts accelerating with constant acceleration a, as shown in the figure, then

A uniform cylinder of mass M and radius R is released from rest on a rough inclined surface of inclination theta with the horizontal as shown in figure. As the cylinder rolls down the inclined surface, the maximum elongation it the spring stiffness k is

RESONANCE-TEST PAPERS-Physics
  1. A cylinder rests in a supporting carriage as shown. The side AB of car...

    Text Solution

    |

  2. A wedge is moving rightwards on which a block of mass 10 kg is placed ...

    Text Solution

    |

  3. A cylinder of mass M and radius R is resting on two corner edges A and...

    Text Solution

    |

  4. There are two massless springs A and B spring constant K(A) and K(B) r...

    Text Solution

    |

  5. Which fo the following statement is true about friction:

    Text Solution

    |

  6. A fusion reaction consists of combining four protons into an alpha-par...

    Text Solution

    |

  7. Which of the following statements are correct for an X-ray tube?

    Text Solution

    |

  8. In the system in the figure m(1)gtm(2) system is held at rest by threa...

    Text Solution

    |

  9. Two blocks of masses 10 kg and 20 kg are connected by a light spring a...

    Text Solution

    |

  10. The block of mass m is kept on plank of mass M. The block is given vel...

    Text Solution

    |

  11. A beam of electrons striking a copper target produces X-rays. Its spec...

    Text Solution

    |

  12. In the figure the pulley P moves to the right with a constant speed u....

    Text Solution

    |

  13. No work is done by a force on an object if

    Text Solution

    |

  14. A block of mass M is kept in elevator (lift) which starts moving upwar...

    Text Solution

    |

  15. A block of mass M is kept in elevator (lift) which starts moving upwar...

    Text Solution

    |

  16. There of the fundamental constant of physics are the universal gravit...

    Text Solution

    |

  17. There of the fundamental constant of physics are the universal gravit...

    Text Solution

    |

  18. One end of a light string of length L is connected to a ball and the o...

    Text Solution

    |

  19. One end of a light string of length L is connected to a ball and the o...

    Text Solution

    |

  20. Figure shows two coherent sources S(1) and S(2) vibrating in same phas...

    Text Solution

    |