Home
Class 11
PHYSICS
One end of string of length l is connect...

One end of string of length `l` is connected to a particle on mass `m` and the other end is connected to a small peg on a smooth horizontal table. If the particle moves in circle with speed `v` the net force on the particle (directed toward centre) will be (`T` reprents the tension in the string):

A

T

B

`T-frac(mv^2)(l)`

C

`T+frac(mv^2)(J)`

D

0

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Laws of Motion

    SL ARORA|Exercise Exercise|627 Videos

  • Kinetic Theory of gases

    SL ARORA|Exercise Example|47 Videos

  • LAWS OF MOTION : FRICTION

    SL ARORA|Exercise Self Practice|95 Videos

Similar Questions

Explore conceptually related problems

A paricle of mass m is tied to a light string of length L and moving in a horizontal circle of radius r with speed v as shown. The forces acting on the particle are

Two particles of masses m and M(Mgtm) are connected by a cord that passes over a massless, frictionless pulley. The tension T in the string and the acceleration a of the particles is

Two particles of mass m and 2m are connected by a string of length L and placed at rest over a smooth horizontal surface. The particles are then given velocities as indicated in the figure shown. The tension developed in the string will be

A particle of mass m is attached to one end of a string of length l while the other end is fixed to a point h above the horizontal table. The particle is made to revolve in a circle on the table so as to make p revolutions per second. The maximum value of p if the particle is to be in contact with the table will be :

A block of mass 1kg is tied to a string of length 1m the other end of which is fixed The block is moved on a smooth horizontal table with constant speed 10ms^(-1) . Find the tension in the string

A particle of mass m_(1) is fastened to one end of a string and one of m_(2) to the middle point, the other end of the string being fastened to a fixed point on a smooth horizontal table The particles are then projected, so that the two portions of the string are always in the same straight line and describes horizontal circles find the ratio of tensions in the two parts of the string

SL ARORA-Laws of Motion-Exercise
  1. One end of string of length l is connected to a particle on mass m and...

    Text Solution

    |

  2. A force acts for 10 s on a body of mass 10 kg after which the force ce...

    Text Solution

    |

  3. A truck starts from rest and rolls down a hill with a constant acceler...

    Text Solution

    |

  4. A force of 5N gives a mass m(1), an acceleration of 8 m//s^(2), and a ...

    Text Solution

    |

  5. In an X-ray machine an electron is subjected to a force of 10^(-23) N ...

    Text Solution

    |

  6. A stone of mass 5kg falls from the top of a cliff 50m high and buries ...

    Text Solution

    |

  7. A bullet of mass 100 gram moving with 20 m//s Strikes a wooden plank ...

    Text Solution

    |

  8. A motor car running at the rate of 7ms^(1) can be stooped by applying ...

    Text Solution

    |

  9. A force of 50N is inclined to the vertical at an angle of 30^(@) Find ...

    Text Solution

    |

  10. A ship of mass 3xx10^7kg initially at rest, is pulled by a force of 5x...

    Text Solution

    |

  11. A ballon has a mass of 5 g in air. The air escapes from the ballon at ...

    Text Solution

    |

  12. A cricket ball of mass 150 kg is moving with a velocity of 12 m//s and...

    Text Solution

    |

  13. A hammer weighing 1 kg moving with the speed of 10ms^(-1) strikes the ...

    Text Solution

    |

  14. A hammer weighing 1 kg moving with the speed of 10ms^(-1) strikes the ...

    Text Solution

    |

  15. A hammer weighing 1 kg moving with the speed of 10ms^(-1) strikes the ...

    Text Solution

    |

  16. Two billiard balls of mass 50 g moving in oppositedirections with spee...

    Text Solution

    |

  17. A machine gun has a mass of 20 kg . It fires 35 g bullets at the rate ...

    Text Solution

    |

  18. A ball of mass 20 gram hits a wall at an angle of 45^(@) with a veloci...

    Text Solution

    |

  19. A glass ball whose mass is 10 g falls from a height of 40 m and reboun...

    Text Solution

    |

  20. A force acting on a body of mass 2 kg varies with time as shown in fig...

    Text Solution

    |

  21. A force acting on a body of mass 2 kg varies with time as shown in fig...

    Text Solution

    |