Home
Class 11
PHYSICS
A triangular set square of angles 30^@,...

A triangular set square of angles `30^@, 60^@, 90^@` and of negligible mass is suspended freely from the right angled corner and weights are hung at the two corners. If the hypotenuse of the set square sets horizontally, then the ratio of the weights `W_1//W_2` is.
.

A

`1 : 1`

B

`1 : 3`

C

`sqrt(3) : 1`

D

`1 : sqrt(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) `AB = l, AD = A cos 30^@ = l cos 30^@ cos 30^@`
`BD = BC cos 60^@ = l cos 60^@ cos 60^@`
`W_1 (AD) = W_2(BD) rArr (W_1)/(W_2) = (1)/(3)`.
.
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL DYNAMICS

    A2Z|Exercise Angular Momentum And Its Conservation|30 Videos

  • ROTATIONAL DYNAMICS

    A2Z|Exercise Work And Energy In Case Of Rotation|22 Videos

  • ROTATIONAL DYNAMICS

    A2Z|Exercise Rotational Kinematics|19 Videos

  • PROPERTIES OF MATTER

    A2Z|Exercise Chapter Test|29 Videos

  • THERMAL PROPERTIES OF MATTER

    A2Z|Exercise Chapter Test|30 Videos

Similar Questions

Explore conceptually related problems

Three weights W , 2 W and 3 W are connected to identical springs suspended from a rigid horizontal rod. The assembly of the rod and the weights fall freely. The positions of the weights from the rod are such that

A regular octagon is formed by cutting congruent isosceles right-angled triangles from the corners of a square. If the square has side-length 1, the side-length of the octagon is-

Three weights w, 2w and 3w are connected to identical spring suspended from a rigid horizontal rod. The assembly of the rod and the weights fall freely. The positions of the weight from the rod are such that

Aspring of weight W and force constant k is suspended in a horizontal position by two light strings attached to its two ends. Each string makes and angle theta with the vertical .The extension of the sporing is

A spring of weight W and force constant k is suspended is a horizontal position by tw3o ligth strings attached to its two ends. Each string makes an angle theta with the vertical. The extension of the spring is.

Two weights w_(1) and w_(2) are suspended from the ends of a light string passing over a smooth fixed pulley. If the pulley is pulled up at an acceleration g , the tension in the string will be

A2Z-ROTATIONAL DYNAMICS-Torque , Torque Equation And Equilibrium Of A Rigid Body
  1. A non-uniform bar of weight W and weight L is suspended by two strings...

    Text Solution

    |

  2. A uniform cube of side a and mass m rests on a rough horizontal table...

    Text Solution

    |

  3. A triangular set square of angles 30^@, 60^@, 90^@ and of negligible ...

    Text Solution

    |

  4. A rigid massless rod AB of length 1 m is placed horizontally on two ri...

    Text Solution

    |

  5. Solve the above question if rod has a weight 20 N uniformly distribute...

    Text Solution

    |

  6. A rigid mass less rod of length L is hinged at its one end a weight W ...

    Text Solution

    |

  7. In previous problem, what is the reaction force on the hinge ?

    Text Solution

    |

  8. Where must a 800 N weight be hung on a uniform horizontal 100 N pole o...

    Text Solution

    |

  9. A unifrom horizontal 200 N beam AB length L has two weights hanging fr...

    Text Solution

    |

  10. A weightless rod is acted on by upward parallel forces of 2 N and 4N e...

    Text Solution

    |

  11. A false balance has equal arms. An object weights W1 when placed in on...

    Text Solution

    |

  12. The beam and pans of a balance have negligible mass. An object weight ...

    Text Solution

    |

  13. In first figure a meter stick, half of which is wood and the other hal...

    Text Solution

    |

  14. A ring starts from rest and acquires an angular speed of 10 rads^-1 in...

    Text Solution

    |

  15. A wheel of moment of inertia 2.0 xx 10^3 kgm^2 is rotating at uniform ...

    Text Solution

    |

  16. The moment of inertia of an angular wheel shown in figure is 3200 kgm^...

    Text Solution

    |

  17. A uniform disc of mass M and radius R is mounted on an axle supported ...

    Text Solution

    |

  18. In previous problem, the tangential acceleration of a point on the rim...

    Text Solution

    |

  19. In Q.137, if we hang a body of mass m from the cord, the tangential ac...

    Text Solution

    |

  20. In Q.137, the tension in the cord in the above problem is :

    Text Solution

    |