Home
Class 11
PHYSICS
A spring ball of mass 0.5 kg is dropped ...

A spring ball of mass 0.5 kg is dropped from some height. On falling freely for 10 s, it explodes into two fragments of mass ratio `1:2`. The lighter fragment continues to travel downwards with speed of `60 m//s`. Calculate the kinetic energy supplied during explosion.

Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    CHETANA PUBLICATION|Exercise EXERCISE|76 Videos

  • MAGNETISM

    CHETANA PUBLICATION|Exercise EXERCISE|118 Videos

Similar Questions

Explore conceptually related problems

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

An iron ball of mass 3 kg is released from a height of 125 m and falls freely to the ground. Assuming that the value of g is 10 m//s^(2) , calculate time taken by the ball to reach the ground

An iron ball of mass of 3 kg is released from height of 125 m and falls freely to the fround Assuming that the vlaue of g is 10m//s^2 ,calculate: (i)time taken by the ball to reach the ground.

If a solid sphere of mass 1 kg rolls with linear speed of 1m/s, then the rolling kinetic energy will be

A body of mass 2 kg moves with a velocity of 5 m/s. Find its kinetic energy.

An iron ball of mass of 3 kg is released from height of 125 m and falls freely to the fround Assuming that the vlaue of g is 10m//s^2 ,calculate: velocity of the ball on reaching the ground.

An iron ball of mass 3 kg is released from a height of 125 m and falls freely to the ground. Assuming that the value of g is 10 m//s^(2) , calculate velocity of the ball on reaching the ground

An iron ball of mass of 3 kg is released from height of 125 m and falls freely to the fround Assuming that the vlaue of g is 10m//s^2 ,calculate: the height of the ball at half the time it takes to reach the ground.

An iron ball of mass 3 kg is released from a height of 125 m and falls freely to the ground. Assuming that the value of g is 10 m//s^(2) , calculate he height of the ball at half the time it takes to reach the ground.

CHETANA PUBLICATION-LAWS OF MOTION -EXERCISE
  1. A body of mass 0.5 kg moving with a velocity of 6 m//s collides with a...

    Text Solution

    |

  2. A ball is dropped on a plane horizontal surface from height H. The bal...

    Text Solution

    |

  3. A spring ball of mass 0.5 kg is dropped from some height. On falling f...

    Text Solution

    |

  4. A ball orf mass 100 g dropped on the ground from 5 m bounces repeatedl...

    Text Solution

    |

  5. One of the effects of a force is to change the momentum. Define the qu...

    Text Solution

    |

  6. A bullet of mass 0.1 kg moving horizontally with a velocity of 20 m//s...

    Text Solution

    |

  7. While rotating an object or while openning a door or a water tap we ap...

    Text Solution

    |

  8. Why is the moment of a couple independent of the axis of rotation even...

    Text Solution

    |

  9. A force vecF = (3veci + 2vecj - 4veck) N acts on a particle. The posit...

    Text Solution

    |

  10. Linear velocity of a rotating fan as a whole generally zero. Is it in ...

    Text Solution

    |

  11. Define centre of mass.

    Text Solution

    |

  12. Define and explain rotational equilibrium:

    Text Solution

    |

  13. How can the centre of mass be mathematically determined or understood?

    Text Solution

    |

  14. State any 6 characteristics of centre of mass:

    Text Solution

    |

  15. Define Centre of gravity:

    Text Solution

    |

  16. Why do we need to know the centre of mass of an object? For which obje...

    Text Solution

    |

  17. The mass of the Moon is 0.0123 times that of the Earth and the separat...

    Text Solution

    |

  18. Locate the centre of mass of the syste,m of three particles of masses ...

    Text Solution

    |

  19. Two brass sphere of radii 5 cm and 10 cm are brought in contact with e...

    Text Solution

    |

  20. A uniform beam 1 m long is supported on knife-edge at 60 cm from left ...

    Text Solution

    |