Home
Class 12
PHYSICS
A steel ball of mass m is initially at r...

A steel ball of mass m is initially at rest on a horizontal frictionless surface. It is struck head on by another steel ball of mass 2m travelling with a velocity of 50 cm/s. Calculate the velocities of the two balls after a collision assuming it to be elastic.

Promotional Banner

Topper's Solved these Questions

  • WAVES

    MBD PUBLICATION|Exercise QUESTION BANK|295 Videos

Similar Questions

Explore conceptually related problems

A cricket ball of mass 250 g collides with a bat with velocity of 10 m/s and returns with the same velocity in 0.01s. The force acting on the bat is

Ball 1 collides with another ball of same mass at rest. For what value of coefficient of restitution e, the velocity of second becomes two times that of 1 after collision?

A ball is projected horizontally with a velocity of magnitude 5 m/s. Find its position after 1/4 sec:

A shell of mass 20 kg moving horizontal at 4 m/s explodes into two parts. The part of mass 12 kg moves in the same direction as the shell with a velocity of 25 m/s. Find magnitude and direction of the other part.

A cricket ball of mass 0.2 kg moving with a velocity of 20 m/s is brought to rest by the player in 0.1 sec. Find the impulse of the force on the ball and average force applied by the player

A body of mass 1 kg initially at rest explodes and breaks into three fragment of masses in ratio 1 : 1 : 3. The Pieces of equal masses fly of perpendicular to each other with a speed of 30 m/s each. What is the velocity of the heavier segment.

A cricket ball is rolled on ice with a velocity of 5.6 m/s and comes to rest after travelling 8 m. Find the coefficient of friction Given g=9.8m//s^2 .

MBD PUBLICATION-WORK, ENERGY AND POWER-QUESTION BANK
  1. Calculate the power of heart if it discharges 60 cc of blood at each b...

    Text Solution

    |

  2. A body of mass 2 kg makes an elastic collision with another body at re...

    Text Solution

    |

  3. A steel ball of mass m is initially at rest on a horizontal frictionle...

    Text Solution

    |

  4. A 20kg monkey slides down a vertical rope with a constant acceleration...

    Text Solution

    |

  5. A bullet of mass m, moving with a velocity u stikes a suspended wooden...

    Text Solution

    |

  6. A long spring stretched by 2 cm and it's potential energy is U. If the...

    Text Solution

    |

  7. If an elevator is moving vertically up with an acceleration 'a', the f...

    Text Solution

    |

  8. A man of weight W is standing on a lift which is moving up words with ...

    Text Solution

    |

  9. Two masses of 1 gm and 9 g are moving with equal kinetic energies, the...

    Text Solution

    |

  10. A ball of mass 2 kg and another of mass 4 kg are dropped together from...

    Text Solution

    |

  11. The distance from the earth's surface at which the acceleration due to...

    Text Solution

    |

  12. An elevator weighing 500 kg is to be lifted up at a constant velocity ...

    Text Solution

    |

  13. A light body and heavy body have same linear momentum. Which one has g...

    Text Solution

    |

  14. An elevator which can carry a maximum load of 1800 kg (elevator + pass...

    Text Solution

    |

  15. The kinetic energy of a body is increased by 300 % .The momentum of th...

    Text Solution

    |

  16. Two bodies of mass 1 kg and 2 kg have equal momentum. The ratio of the...

    Text Solution

    |

  17. Sand drops fall vertically at the rate of 2 kg/sec on to a conveyor be...

    Text Solution

    |

  18. A bullet when fired at a target has its velocity decreased to 50% afte...

    Text Solution

    |

  19. A body starts from rest and acquires a velocity V in time T. The work ...

    Text Solution

    |

  20. An athlete of mass 60 kg skips at the rate of 20 steps per minute thro...

    Text Solution

    |