Home
Class 11
PHYSICS
Two equal sphere of mass m are in contac...

Two equal sphere of mass `m` are in contact o a smooth horizontal table. `A` third identical sphere impinges symmetrically on them and is reduced to rest. Find `e` and the loss KE.

Text Solution

Verified by Experts

The correct Answer is:
`(2)/(3),(m u^(2)6)/(6)`
Promotional Banner

Topper's Solved these Questions

  • CENTRE OF MASS & MOMENTUM CONSERVATION

    BANSAL|Exercise EXERCISE-1 [SINGLE CORRECT CHOICE TYPE]|23 Videos

  • CENTRE OF MASS & MOMENTUM CONSERVATION

    BANSAL|Exercise EXERCISE-2 [PARAGRAPH TYPE]|10 Videos

  • CENTRE OF MASS & MOMENTUM CONSERVATION

    BANSAL|Exercise Solved Examples|15 Videos

  • GRAVITATION

    BANSAL|Exercise EXERCISE -4 Section - B|6 Videos

Similar Questions

Explore conceptually related problems

Two equal spheres of mass m are in contact on a smooth horizontal table. A third identical sphere impinges symmetrically on them and reduces to rest. Then:

Two equal spheres of mass m are in contact on a smooth horizontal table. A third identical sphere impinges symmetrically on the and is reduced to rest. Prove that e=2/3 and find the loss in KE .

Two identical billiard balls are in contact on a table. A third identical ball strikes them symmetrically and comes to rest after impact. The coefficient of restitution is :

A bullet of mass m is fired horizontally into a large sphere of mass M and radius R resting on a smooth horizontal table. The bullet hits the sphere at a height h from the table and sticks to its surface. If the sphere starts rolling without slippng immediately on impact, then

Two billiard balls of same size and mass are in contact on a billiard table. A third ball of same mass and size strikes them symmetrically and remains at rest after the impact. Find the coefficient of restitution between the balls?

A plank of mass m_1 with a uniform sphere of mass m_2 placed on it rests on a smooth horizontal plane. A constant horizontal force F is applied to the plank. With what acceleration will the plank and the centre of the sphere move provided there is no sliding between the plank and the sphere?

A wire is wrapped N times over a solid sphere of mass m which is place on a smooth horizontal surface. A horizontal magnetic field of induction vec B is present. Find the (a) torque (b) angular acceleration experienced by the sphere. Assume that the mass of the wire is negligible compared to the mass of the sphere.

BANSAL-CENTRE OF MASS & MOMENTUM CONSERVATION-Practice Exercise
  1. If all the particlke of a system lie in X-Y plane is it necessary that...

    Text Solution

    |

  2. If all the particle of a system lie n a cube is it necessary that the...

    Text Solution

    |

  3. Find centre of mass of a system of three particle kept at the corner e...

    Text Solution

    |

  4. Find the Xcm of center of mass of a barbell consisting of 50kg and 80k...

    Text Solution

    |

  5. Consider the previous problem, at what point must the rod be picked ov...

    Text Solution

    |

  6. A baseball bat of uniform density is cut at the location of its center...

    Text Solution

    |

  7. Calculate centre of mass of the system

    Text Solution

    |

  8. Seven homogeneous bricks, each of length L are arranged as shown in fi...

    Text Solution

    |

  9. Consider a rectangular plate of dimensions axxb. If this plate is cons...

    Text Solution

    |

  10. Find the centre of mass of the shaded portion of a disc

    Text Solution

    |

  11. The ring R in the arrangement shown can slide along a smooth fixed, ho...

    Text Solution

    |

  12. This figure shows a man of mass m standing at the end A to a trolley o...

    Text Solution

    |

  13. A man of mass 60kg jumps from a trolley of mass 20kg standing on smoot...

    Text Solution

    |

  14. Three particles of masses 20g, 30g and 40g are initially moving along ...

    Text Solution

    |

  15. A bullet of mass m strikes a block of mass M connected to a light spri...

    Text Solution

    |

  16. Find the final velocities of the masses after in collision the given s...

    Text Solution

    |

  17. Two spheres are moving towards each other. Both have same radius but t...

    Text Solution

    |

  18. Two spheres are moving towards each other. Both have same radirs but t...

    Text Solution

    |

  19. A ball of mass m moving with a speed u(1) collides elasticity with ano...

    Text Solution

    |

  20. Two equal sphere of mass m are in contact o a smooth horizontal table....

    Text Solution

    |