Home
Class 12
PHYSICS
A particle of mass m is projected with s...

A particle of mass m is projected with speed u at an angle `theta` with the horizontal. Find the torque of the weight of the particle about the point of projection when the particle is at the highest point.

A

`malpha^(2)`

B

`malpha`

C

`(malpha)/(2)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • RACE

    ALLEN|Exercise Basic Maths (CIRCULAR MOTION)|17 Videos

  • RACE

    ALLEN|Exercise Basic Maths (COLLISION AND CENTRE OF MASS )|12 Videos

  • RACE

    ALLEN|Exercise Basic Maths (FRICTION)|14 Videos

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-III|28 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise Example|1 Videos

Similar Questions

Explore conceptually related problems

A particle of mass m=1kg is projected with speed u=20sqrt(2)m//s at angle theta=45^(@) with horizontal find the torque of the weight of the particle about the point of projection when the particle is at the highest point.

A particle of mass m is projected with a speed v at an angle theta with the horizontal. Find the angular momentum of the particle about an axis passing through point of projection and perpendicular to the plane of motion of the particle. (a) When the particle is at maximum height and (b) When the particle is just about to collide with the horizontal surface

A particle of mass m is projected with a velocity v making an angle of 45^@ with the horizontal. The magnitude of the angular momentum of the projectile abut the point of projection when the particle is at its maximum height h is.

A particle is projected with speed u at angle theta to the horizontal. Find the radius of curvature at highest point of its trajectory

A particle of mass m is projected with velocity v at an angle theta with the horizontal. Find its angular momentum about the point of projection when it is at the highest point of its trajectory.

A particle is projected with velocity v at an angle theta aith horizontal. The average angle velocity of the particle from the point of projection to impact equals

A particle is projected with a speed v at an angle theta with the horizontal. Find the mean power delivered by gravity during the ascent of the particle.

A particle of mass 1kg has been thrown with initial speed 20 m/s making an angle 60° with the horizontal ground. the angular momentum of the particle about point of projection when the projectile is at highest point is (g=10m/s^2)

A body of mass m is projected with a velocity u at an angle theta with the horizontal. The angular momentum of the body, about the point of projection, when it at highest point on its trajectory is

A particle of mass m is projected with a velocity v at an angle of theta with horizontal. The angular momentum of the particle at the highest point of its trajectory is equal to :

ALLEN-RACE-Basic Maths (WORK POWER & ENERGY)
  1. A block of mass m is released on the top of a smooth inclined plane of...

    Text Solution

    |

  2. A particle of mass 0.1 kg is subjected to a force which varies with di...

    Text Solution

    |

  3. An unloaded bus can be stopped by applying brakes on straight road aft...

    Text Solution

    |

  4. A body of mass m, accelerates uniformly from rest to V(1) in time t(1)...

    Text Solution

    |

  5. A car of mass m has an engine which can deliver power P, The minimum t...

    Text Solution

    |

  6. The rate of doing work by force acting on a particle moving along x - ...

    Text Solution

    |

  7. An object starts from rest and is acted upon by a variable force F as ...

    Text Solution

    |

  8. Which of the following force is not conservative :-

    Text Solution

    |

  9. A disc of mass m and radius r is free to rotate about its centre as sh...

    Text Solution

    |

  10. A particle of mass m is projected with speed u at an angle theta with ...

    Text Solution

    |

  11. A cubical block of mass m and edge a slides down a rough inclned plane...

    Text Solution

    |

  12. The torpue of force vecF=-2hati+2hatj+3hatk acting on a point vecr=hat...

    Text Solution

    |

  13. Moment of a force of magnitude 20 N acting along positive x-direction ...

    Text Solution

    |

  14. A disc is rotating with angular velocity hatomega about its axis. A fo...

    Text Solution

    |

  15. When a torque acting upon a system is zero. Which of the following wil...

    Text Solution

    |

  16. Two men support a uniform rod of mass M and length L at its two ends. ...

    Text Solution

    |

  17. The thin rod shown below has mases M and length L. A force F acts at o...

    Text Solution

    |

  18. Two equal and opposite forces F are allplied tangentially to a uniform...

    Text Solution

    |

  19. A wheel having moment of inertia 4 kg m^(2) about its symmetrical axis...

    Text Solution

    |

  20. For equilibrium of the system, value of mass m should be

    Text Solution

    |