Home
Class 11
PHYSICS
Figure shows a small wheel fixed coaxial...

Figure shows a small wheel fixed coaxially on a bigger one of double the radius. The system rotates about the comon axis. The strings supporting A and B do not slip on the wheels. If x and y be thedistances travelled by A and B in the same time interval, then

A

`x=2y`

B

`x=y`

C

`y=2x`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MECHANICS

    HC VERMA|Exercise Objective 2|15 Videos
  • ROTATIONAL MECHANICS

    HC VERMA|Exercise Exercises|86 Videos
  • ROTATIONAL MECHANICS

    HC VERMA|Exercise Short Answer|22 Videos
  • REST AND MOTION : KINEMATICS

    HC VERMA|Exercise Exercises|51 Videos
  • SIMPLE HARMONIC MOTION

    HC VERMA|Exercise Exercises|58 Videos

Similar Questions

Explore conceptually related problems

In the figure A and B are two blocks of mass 4 kg and 2 kg respectively attached to the two ends of light string passing overa disc C of mass 40 kg and radius 0.1 m . The disc is free to rotate about a fixed horizontal the string does not string does not slip over the disc. Find. (i) The linear acceleration of mass B . (ii) the number of revolutions made by the disc at the end of 10 sec . from the start. (iii) the tension in teh string segment supporting the block A . .

A 4kg block is attached to a vertical rod by means of two strings of equal length. When the system rotates about the axis of the rod, the strings are extended as shown in figure. (a) How many revolutions per minute must the system make in order for the tension in the upper string to be 200N ? (b) What is the tension in the lower string then ?

A disc of radius R stands at the edge of a table. If the given a gentle push and it beings to fall. Assume that the disc does not slip at A and it rotates about the point as it falls. The falling disc hits the edge of another table placed at same height as the first one at a horizontal distance of sqrt2 R . Imagine that the disc hits the edge B and rotates (up) about the edge (a) Find the speed of the centre of the disc at the instant just before it hits the edge B. (b) Find the angular speed of the disc about B just after the hit.

Figure shows a student, sitting on a stool that can rotate freely about a vertical axis. The student, initially at rest, is holding a bicycle wheel whose rim is loaded with lead and whose moment of inertia is I about its central axis. The wheel is rotating at an angular speed omega_i from an overead perspective, the rotation is counter clockwise. The axis of the wheel point vertical, and the angular momentum vecL_i of the wheel points vertically upward. The student now inverts the wheel, as a result, the student and stool rotate about the stool axis. With what angular speed and direction does the student then rotate? (The moment of inertia of the student+stool+wheel system about the stool axis is I_0 )

A constant net torque equal to 20 N-m is exerted on a pivoted wheel for 8 sec, during which time the angular velocity of the wheel increases from zero to 100 re // min. The external torque is then removed and the wheel is brought to rest by friction in its bearings in 70 sec. Compute (a) the moment of inertia of the wheel about the rotation axis, (b) the friction torque(c)thetotal no. of revolutions made by the wheel in the70 sec time interval

A wheel of radius R having charg Q , uniformly distributed on the rim of the wheel is free to rotate about a light5 horizontal rod. The rod is suspended by light inextensible strings and a magnetic field B is applied as shown in the figure. The initial tensions in the strings are T_(0). If the breaking tension of the strings are (3T_(0))/(2) , find the maximum angular velocity omega_(0) with which the wheel can be rotated.

A wheel of radius R with an axle of radius R/2 is shown in the figure and is free to rotate about a frictionless axis through its centre and perpendicular to the page. Three forces (F, F, 2F) are exerted tangentially to the repective rims as shown in the figure. The magnitude of the net torque acting on the system is nearly

In the figure shown, a string is wound over a cylinder A. The other end of the string is attached to block B through a pulley. When the system is released the cylinder rolls down without slipping. The ratio of the magnitude of vertical component of displacement of A and B in any time interval t

HC VERMA-ROTATIONAL MECHANICS-Objective 1
  1. A particle moves with a constant velocity pralel to the X-axis. Its an...

    Text Solution

    |

  2. A ody is in pure rotation. The linear speed v of a particle, the dista...

    Text Solution

    |

  3. Figure shows a small wheel fixed coaxially on a bigger one of double t...

    Text Solution

    |

  4. A body is rotating uniformly about a vertical axis fixed in an inertia...

    Text Solution

    |

  5. A body is rotating anonuniformly abut a vertical axis fixed in an iner...

    Text Solution

    |

  6. Let vecF be the force acitng on a paritcle having positon vector vecr...

    Text Solution

    |

  7. One end of a uniform rod of mas m and length l is clamped. The rod lie...

    Text Solution

    |

  8. A uniform rod is kept vertically on a horizontally smooth surface at ...

    Text Solution

    |

  9. A circular disc A of radius r is made from an iron plate of thickness ...

    Text Solution

    |

  10. Equal torques asct on the discs A and B of theh previous problem, init...

    Text Solution

    |

  11. A closed cylindrica tube containing some water (not filling the entire...

    Text Solution

    |

  12. The moment of inertias of a unifrom semicircular wire of mss M and rad...

    Text Solution

    |

  13. Let I1 and I2 be the moments of inertia of two bodies of identical ge...

    Text Solution

    |

  14. A body having its centre of mass at the origin has three of its partic...

    Text Solution

    |

  15. A cubical block of mass M and edge a slides down a rougg inclined plan...

    Text Solution

    |

  16. A thin circular ring of mass M and radius r is rotating about its ais ...

    Text Solution

    |

  17. A man is sitting on a rotating stool with his arms outstretched. If su...

    Text Solution

    |

  18. The centre of a wheel rolling on a plaen surface moves with a speed v0...

    Text Solution

    |

  19. A wheel of radius 20 cm is pushed ot move it on a rough horizontal sur...

    Text Solution

    |

  20. The angular velocity of the engine (and hence of the wheel) on a scoot...

    Text Solution

    |