Home
Class 11
PHYSICS
Average torque on a projectile of mass m...

Average torque on a projectile of mass `m` (initial speed `u` and angle of projection `theta`) between initial and final positions `P` and `Q` as shown in figure, about the point of projection is :
.

A

`("mu"^(2)sin2theta)/(2)`

B

`"mu"^(2)costheta`

C

`"mu"^(2)sintheta`

D

`("mu"^(2)costheta)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    DC PANDEY ENGLISH|Exercise More than one option is correct|36 Videos

  • ROTATIONAL MOTION

    DC PANDEY ENGLISH|Exercise Comprehension Type Questions|40 Videos

  • ROTATIONAL MOTION

    DC PANDEY ENGLISH|Exercise Integer Type Questions|17 Videos

  • ROTATIONAL MECHANICS

    DC PANDEY ENGLISH|Exercise Subjective Questions|2 Videos

  • SEMICONDUCTORS AND ELECTRONIC DEVICES

    DC PANDEY ENGLISH|Exercise More than One Option is Correct|3 Videos

Similar Questions

Explore conceptually related problems

A particle of mass m , initial speed u and angle of projection theta is projected as shown in the figure. Average torque on the projectile between initial and final positions P and Q about the point of projection is

A stone is projected with speed u and angle of projection is theta . Find radius of curvature at t=0.

The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is .

A particle of mass m is projected from the ground with an initial speed u at an angle alpha . Find the magnitude of its angular momentum at the highest point of its trajector about the point of projection.

A particle of mass m is projected from the ground with an initial speed u at an angle alpha . Find the magnitude of its angular momentum at the highest point of its trajector about the point of projection.

A projectile thrown with an initial speed u and the angle of projection 15^@ to the horizontal has a range R . If the same projectile is thrown at an angle of 45^@ to the horizontal with speed 2 u , what will be its range ?

A particle is projected at t = 0 with velocity u at angle theta with the horizontal. Then the ratio of the tangential acceleration and the radius of curvature at the point of projection is :

A particle of mass m is projected with a speed u at an angle theta to the horizontal at time t = 0 . Find its angular momentum about the point of projection O at time t , vectorially. Assume the horizontal and vertical lines through O as X and Y axes, respectively.

A particle is projected at an angle theta with an initial speed u .

A ball is projected from top of the table with initial speed u at an angle of inclination theta , motion of image of ball w.r.t ball

DC PANDEY ENGLISH-ROTATIONAL MOTION-A Only One Option is Correct
  1. A uniform rod AB of mass m and length l is at rest on a smooth horizon...

    Text Solution

    |

  2. Choose the correct option: A horizontal turn table in the form of a ...

    Text Solution

    |

  3. Average torque on a projectile of mass m (initial speed u and angle of...

    Text Solution

    |

  4. A uniform rod AB of mass m and length 2a is falling freely without rot...

    Text Solution

    |

  5. Figures shows a smooth inclined plane of inclination theta fixed ina c...

    Text Solution

    |

  6. The acceleration a of the plank P required to keep the centre C of a c...

    Text Solution

    |

  7. A spherical body of radius R is allowed to roll down on an incline wit...

    Text Solution

    |

  8. Portion AB of the wedge shown in figure is rough and BC is smooth. A s...

    Text Solution

    |

  9. One end of a uniform rod of length l and mass m is hinged at A. It is ...

    Text Solution

    |

  10. A sphere is rotating between two rough inclined walls as shoen in fio...

    Text Solution

    |

  11. A rod of mass m and length l is hinged at one of its end A as shown in...

    Text Solution

    |

  12. A uniform rod of length l is pivoted at point A. It struk n=by an hori...

    Text Solution

    |

  13. A thin uniform rod of mass m moves translationally with acceleration a...

    Text Solution

    |

  14. In the figure shown mass of both, the spherical body and blocks is m. ...

    Text Solution

    |

  15. A particle is projected with velocity v at an angle theta aith horizon...

    Text Solution

    |

  16. An impulse J is applied on a ring of mass m along a line passing throu...

    Text Solution

    |

  17. A plank of mass M is placed over smooth inclined plane and sphere is a...

    Text Solution

    |

  18. In the figure shown, the plank is being pulled to the right with a con...

    Text Solution

    |

  19. A uniform rod AB of length L and mass M is lying on a smooth table. A ...

    Text Solution

    |

  20. A time varying force F=2t is applied on a spool as shown in figure. Th...

    Text Solution

    |