Home
Class 12
PHYSICS
A spherical ball of mass m =5kg rests be...

A spherical ball of mass m =5kg rests between two planes which make angles of `30^(@)` and `45^(@)` respectively with the horizontal. The system is in equilibrium. Find the normal forces exerted on the ball by each of the planes. The planes are smooth.

A

`N_(45) = 96.59N, N_(30) = 136.6N`

B

`N_(30) =96.59 N, N_(45) =136.6 N `

C

`N_(45) = 136.6 N, N_(30) = 96.56N`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NLM & FRICTION

    MOTION|Exercise EXERCISE-2(Level-II)|25 Videos
  • NLM & FRICTION

    MOTION|Exercise EXERCISE-3(Level-I)|18 Videos
  • NLM & FRICTION

    MOTION|Exercise EXERCIS-1|80 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 3 Section-B|12 Videos
  • ONE DIMENSION MOTION

    MOTION|Exercise Exercise - 3 |Section - B Previous Year Problems | JEE MAIN|12 Videos

Similar Questions

Explore conceptually related problems

A brick of mass 2kg begins to slide down on a plane inclined at an angle of 45^(@) with the horizontal. The force of friction will be

A sphercial ball of mass 5kg is resting on a plane with angle of inclination 30^(@) with respect to the horizontal as shown in the figure. The ball is held in place by a rope attached horizontally to the top of the ball and to the slope. The frictional force acting on the ball is

A block of mass m slides down an inclined plane which makes an angle theta with the horizontal. The coefficient of friction between the block and the plane is mu . The force exerted by the block on the plane is

A person pushes a block of mass 4 kg up a frictionless inclined plane 10 m long and that makes an angle of 30^@ with the horizontal . Then the work done is

A block of 4 kg slides down an inclined plane which makes an angle theta = 60^(@) with the horizontal. The co-effcient of friction between the block and the plane is mu = 3//4 . The force exerted by the block on the plane is (g = 10 m//s^(2))

A spherical ball is placed between a vertical wall and a movable inclined plane as shown. There is no friction between the wall and the ball, and no friction between the ball and the inclined plane. The coefficient of friction between the inclined plane and the ground is The system is in equilibrium. The normal force exerted by the plane on the ball is

A spherical ball of mass 1/2 kg is held at the top of an inclined rough plane making angle 30º with the horizontal the coefficient of limiting friction is 0.5. If the ball just slides down the plane without rolling its acceleration down the plane is -

A block of mass 2kg rests on a rough inclined plane making an angle of 30^@ with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is

A block of mass 4 kg slides down a plane inclined at 37^(@) with the horizontal. The length of plane is 3 m. find work done by normal force , gravity and frictional force .

MOTION-NLM & FRICTION-EXERCISE-2
  1. If the tension in the cable supporting an elevator is equal to the wei...

    Text Solution

    |

  2. When a body is stationary :

    Text Solution

    |

  3. A spherical ball of mass m =5kg rests between two planes which make an...

    Text Solution

    |

  4. Beads A and B each of mass m , are connected by a light inextensible c...

    Text Solution

    |

  5. Two masses m and M are attached to the strings as shown in the figure....

    Text Solution

    |

  6. A flexible chain of weight W hangs between two fixed points A and B at...

    Text Solution

    |

  7. Which graph shows best the velocity-time graph for an object launched ...

    Text Solution

    |

  8. Adjoining figure shows a force of 40N acting at 30^(@) to the horizont...

    Text Solution

    |

  9. A block is kept on a frictionless inclined surface with angle of incli...

    Text Solution

    |

  10. A cylinder rests in a supporting carriage as shown. The side AB of car...

    Text Solution

    |

  11. In the arrangement shown below, pulleys are mass-less and friction-les...

    Text Solution

    |

  12. Two masses m and 2m are connected by a massless string, which passes o...

    Text Solution

    |

  13. In the figure, the blocks A,B and C of mass m each have accelerations ...

    Text Solution

    |

  14. A student calculates the acceleration of m(1) in figure shown as a(1) ...

    Text Solution

    |

  15. Two masses 10 kg and 20 kg respectively are connected by a massless sp...

    Text Solution

    |

  16. Two blocks are connected by a spring. The combination is suspended, at...

    Text Solution

    |

  17. What will be the reading of spring balance in the figure shown in fol...

    Text Solution

    |

  18. What will be the reading of spring balance in the figure shown in fol...

    Text Solution

    |

  19. What will be the reading of spring balance in the figure shown in fol...

    Text Solution

    |

  20. What will be the reading of spring balance in the figure shown in fol...

    Text Solution

    |