Home
Class 11
PHYSICS
A body weighing 0.4 kg is whirled in a v...

A body weighing 0.4 kg is whirled in a vertical circle making 2 revolutions per second. If the radius of the circle is 1.2 m, find the tension in the string, when the body is (a) at the top of the circle (b) at the bottom of the circle. Given : g = 9.8 `ms^(-2)` and `pi` = 1.2 m

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 body of mass 0.4 kg is whirled in a vertical circle making 2 rev/sec. If the radius of the circle is 1.2 m, then tension in the string when the body is at the top of the circle, is

A body of mass 0.4 kg is whirled in a vertical circle making 2 rev/sec . If the radius of the circle is 2 m , then tension in the string when the body is at the top of the circle, is

A body of mass 0.6 mg kg is whirled in a vertical circle making 5 revolutions in one second . If the radius of the circle is 1.4 m , find the tension in the string , when the body is (i) at the lower most of the circle point , (ii) at the top of the circle .

A body weighing 0.4kg is whirled in a verticle circle making 2rps If the radius of the circle is 1.2m find the tension in the stringat (i) top of the circle (ii) bottom of the circle .

A body of mass 0.5 kg is whirled in a verticle circle an angular frequancy of 10 rad //s .If the radius of the circle is 0.5 m . What is the tension in the string when the body is at the top of the circle? (Given g= 10 m//s^(2))

A body weighing 0.5 kg tied to a string is projected with a velocity of 10 ms^(-1) . The body starts whirling in a vertical circle. If the radius of circle is 0.8 m, find the tension in the string when the body is (i) at the lop of the circle and (ii) at the bottom of the circle.

The speed limit of a car over a roadways bridge in circle making 2rps If radius of the circle is 1.2cm find the tension in the string at I) top of the circle (ii) bottom of the circle .

A ball weighing 0.3 kg is whirling in a vertical circle of radius 1.5 m . The number of revolutions made by the ball per second is 5 . Calculate the tension in the string at the topmost point and at the lowerment point .

A particle of mass m is rotated in a vertical circle by means of a string . The differnce in the tensions in the string at the bottom and the top of the circle would be

A 2 kg stone at the end of a string 1 m long is whirled in a vertical circle at a constant speed. The speed of the stone is 4 m//sec . The tension in the string will be 52 N , when the stone is

SL ARORA-Laws of Motion-Exercise
  1. A body weighing 0.4 kg is whirled in a vertical circle making 2 revolu...

    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

    |