Home
Class 12
PHYSICS
One end of a straight uniform 1m long ba...

One end of a straight uniform 1m long bar is pivoted on horizontal table. It is released from the rest when it makes an angle `30^(@)` from the horizontal (see figure). Its angular speed when it hits the table is given as `sqrt(n)s^(-1)`, where n is an integer. The value of n is ..............

Promotional Banner

Topper's Solved these Questions

  • JEE MAINS

    JEE MAINS PREVIOUS YEAR ENGLISH|Exercise Chemistry|1 Videos

Similar Questions

Explore conceptually related problems

A rod of length 50cm is pivoted at one end. It is raised such that if makes an angle of 30^(@) from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in rad s^(-1) ) will be ( g=10ms^(-2) )

A stone tied to an inextensible string of length l = 1 m is kept horizontal. If it is released, find the angular speed of the stone when the string makes an angle theta = 30^@ with horizontal.

One end of a uniform rod of length l and mass m is hinged at A. It is released from the rest from horizontal position AB as shown in figure. The force exerted by the rod on the hinge when it becomes verticle is

A slender rod of mass m and length L is pivoted about a horizontal axis through one end and released from rest at an angle of 30^@ above the horizontal. The force exerted by the pivot on the rod at the instant when the rod passes through a horizontal position is

A projectile projected with initial velocity 20m/s and at and angle of 30^(@) from horizontal. Find the total work done when it will hit the ground.

A rod of length L is hinged from one end. It is brought to the horizontal position and released. The angular velocity of the rod when it is in the vertical position is sqrt(Kg//L) . Then find the value of K.

A rigid rod of mass m & length l is pivoted at one of its ends. If it is released from its horizontal position, find the speed of the centre of mass of the rod when it becomes vertical.

A rod of mass m and length L is hinged at its top end. If the rod is in equilibrium making an angle of 30^(@) with the vertical when a horizontal force F is applied as shown in figure, then the value of F is:

A uniform rod of length 2l is placed with one end in contact with the horizontal table and is then inclined at an angle alpha to the horizontal and allowed to fall. When it becomes horizontal, its angular velocity will be

A bullet is fired with speed 50m//s at 45^(@) angle with horizontal. Find the height of the bullet when its direction of motion makes angle 30^(@) with the horizontal.

JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAIN-All Questions
  1. In a fluorscent lamp choke (a small transformer) 100V of reverse volta...

    Text Solution

    |

  2. In the given circuit both diodes are ideal having zero forward resista...

    Text Solution

    |

  3. One end of a straight uniform 1m long bar is pivoted on horizontal tab...

    Text Solution

    |

  4. Position of a particle as a function of time is given as x^2 = at^2 + ...

    Text Solution

    |

  5. Ratio of energy density of two steel rods is 1 : 4 when same mass is s...

    Text Solution

    |

  6. The current I in the network is :

    Text Solution

    |

  7. Find centre of mass of given rod of linear mass density lambda=(a+b(x/...

    Text Solution

    |

  8. For the four of three measured physical quantities as given below. Whi...

    Text Solution

    |

  9. A particle is projected from the ground with speed u at angle 60^@ fro...

    Text Solution

    |

  10. Two identical capacitor A and B, charged to the same potential 5V are ...

    Text Solution

    |

  11. An AC source is connected to the LC series circuit with V = 10 sin (31...

    Text Solution

    |

  12. A string of mass per unit length mu = 6 × 10^(-3) kg/m is fixed at bot...

    Text Solution

    |

  13. Two gases-argon (atomic radius 0.07 nm, atomic weight 40) and xenon (a...

    Text Solution

    |

  14. Planet A has massa M and radius R. Planet B has half the mass and half...

    Text Solution

    |

  15. A point source of light is placed at a distance hbelow the surface of ...

    Text Solution

    |

  16. A uniformly thick wheel with moment of inertia I and radius R is free ...

    Text Solution

    |

  17. A particle starts from the origin at t=0 with an initial velocity of 3...

    Text Solution

    |

  18. An electron gun is placed inside a long solenoid of radius R on its ex...

    Text Solution

    |

  19. H-like atom with ionization energy of 9R. Find the wavelength of light...

    Text Solution

    |

  20. A plane electromagnetic wave is propagagting along the direction (hati...

    Text Solution

    |