Home
Class 12
PHYSICS
A circular disk of radius 2.0 m rotates,...

A circular disk of radius 2.0 m rotates, starting from rest, with a constant angular acceleration of `20.0rad//s^(2)`. What is the tangential acceleration of a point on the edge of the disk at the instant that its angular speed is 1.0 rev/s?

A

`40m//s^(2)`

B

`110m//s^(2)`

C

`79m//s^(2)`

D

`120m//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RIGID BODY DYNAMICS - I

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (MORE THAN ONE CORRECT CHOICE TYPE)|7 Videos
  • RIGID BODY DYNAMICS - I

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (LINKED COMPREHENSION)|7 Videos
  • RIGID BODY DYNAMICS - I

    RESNICK AND HALLIDAY|Exercise PROBLEMS|100 Videos
  • RELATIVITY

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type)|5 Videos
  • RIGID BODY DYNAMICS-II

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type)|2 Videos

Similar Questions

Explore conceptually related problems

A circular disk of radius 0.010 m rotates with a constant angular speed of 5.0 rev/s. What is the acceleration of a point on the edge of the disk?

A wheel starting from rest ia rotating with a constant angular velocity of 3 rad s^-1 . What is its angular acceleration after 4 s?

A disc of radius 0.1 m starts from rest with an angular acceleration of 4.4 rad//s^(2) .Then linear velocity of the point on its after 5 s is

A wheel starting from rest,rotates with a uniform angular acceleration of 2rad/s^(2) .Then the number of rotations it performs in tenth second is

Initial angular velocity of a wheel is 2 rad//s .It rotates with a constant angular acceleration of 3.5 rad//s^(2) .Its angular displacement in 2 s is

A flywheel of radius 30 cm starts from rest and accelerates with constant with constant angular acceleration 0.5 rad//s^(2) . Compute the tangential , radial and resultant accelerations of a point on its circumference : (a) initially at theta = 0^(@) (b) after it has made one thrid of a revolution

An automobile engine starting from rest is given an angular acceleration of 20 rad //s ^(2) for 10 s .Find the angle turned during this period

If a 42.0N*m torque on a wheel causes angular acceleration 25.0rad//s^(2) , what is the wheel's rotational inertia?

A samll object of mass 10.0 g is at rest 30.0 cm from a horizontal disk's centre. The disk starts to rotate from rest about its centre with a constant angular acceleration of 4.50 rad/ s^(2) . What is the magnitude of the net force acting on the object after a time of t=1/3 s if the object remains at rest with respect to the disk ?

If a disc starting from rest acquires an angular velocity of 240 "rev min"^(-1) in 10 s, then its angularw acceleration will be

RESNICK AND HALLIDAY-RIGID BODY DYNAMICS - I-PRACTICE QUESTIONS (SINGLE CORRECT CHOICE TYPE)
  1. A circular disk of radius 0.010 m rotates with a constant angular spee...

    Text Solution

    |

  2. After 10.0 s, a spinning roulette wheel at a casino has slowed down to...

    Text Solution

    |

  3. A circular disk of radius 2.0 m rotates, starting from rest, with a co...

    Text Solution

    |

  4. At the local swimming hole, a favorite trick is to run horizontally of...

    Text Solution

    |

  5. The original Ferris wheel has a radius of 38 m and completed a full re...

    Text Solution

    |

  6. The figure shows a graph of the angular velocity of a rotating wheel a...

    Text Solution

    |

  7. The figure shows the top view of a door that is 2 m wide. Two forces a...

    Text Solution

    |

  8. Three objects are attached to a massless rigid rod that has an axis of...

    Text Solution

    |

  9. A solid circular disk has a mass of 1.2 kg and a radius of 0.16 m. Eac...

    Text Solution

    |

  10. A 50 kg rider on a moped of mass 75 kg is traveling with a speed of 20...

    Text Solution

    |

  11. A long thin rod is cut into two pieces, one being twice as long as the...

    Text Solution

    |

  12. A 50 N m torque acts on a wheel with a moment of inertia 150kg*m^(2). ...

    Text Solution

    |

  13. A solid cylinder of radius 0.35 m is released from rest from a height ...

    Text Solution

    |

  14. One end of a thin rod is attached to a pivot, about which it can rotat...

    Text Solution

    |

  15. A thin rod of length L is lying along the x-axis with its ends at x = ...

    Text Solution

    |

  16. A solid cylinder with a mass m and radius r is mounted so that it can ...

    Text Solution

    |

  17. A point P moves in counter-clockwise direction on figure. The movement...

    Text Solution

    |

  18. A certain merry-go-round is accelerated uniformly from rest and attain...

    Text Solution

    |

  19. A body is rotating around a fixed axis with angular velocity 3 rad/s w...

    Text Solution

    |

  20. A 1.0 kg wheel in the form of a solid disk rolls along a horizontal su...

    Text Solution

    |