Home
Class 9
PHYSICS
Suppose a ball of mass m is thrown verti...

Suppose a ball of mass m is thrown vertically upward with an initial speed v, its speed decreases continuously till it becomes zero. Thereafter, the ball beigns to fall downward and attains the speed v again before striking the ground. It implies that the magnitude of initial and final momentums of the ball are same. Yet, it is not an example of conservation of momentum. Explain why?

Promotional Banner

Topper's Solved these Questions

  • FORCE AND LAWS OF MOTION

    MODERN PUBLICATION|Exercise EXAMPLE|123 Videos

  • FLOATING BODIES

    MODERN PUBLICATION|Exercise EXERCISE|149 Videos

  • GRAVITATION

    MODERN PUBLICATION|Exercise EXAMPLE|102 Videos

Similar Questions

Explore conceptually related problems

Two balls of different masses (one lighter and other heavier) are thrown vertically upward with same initial speed. Which one will rise to the greater height)?

Two identical ball bearing in contact with each other and resting on a frictionless table are hit head on by another ball bearing of the same mass moving initially with a speed V shown in the figure. If the collision is elastic, which of the folloiwng shown in the figure is a possible result after collision ?

Two identical ball bearings in contact with each other and resting on a frictionless table are hit head-on by another ball bearing of the same mass moving initially with a speed V. If the collision is elastic, which of the following (Fig. 6.14) is a possible result after collision ?

MODERN PUBLICATION-FORCE AND LAWS OF MOTION-EXAMPLE
  1. Two identical bullets are fired one by a light rifle and another by a ...

    Text Solution

    |

  2. A horse continues to apply a force in order to move a cart with a cons...

    Text Solution

    |

  3. Suppose a ball of mass m is thrown vertically upward with an initial s...

    Text Solution

    |

  4. A truck of mass M is moved under a force F. If the truck is then loade...

    Text Solution

    |

  5. Two friends on roller-skates are standing 5m apart facing eachother. O...

    Text Solution

    |

  6. Water sprinkler used for grass lawns beigns to rotate as soon as the w...

    Text Solution

    |

  7. Using second law of motion, derive the relation between force and acce...

    Text Solution

    |

  8. Using second law of motion, derive the relation between force and acce...

    Text Solution

    |

  9. Derive the unit of force using the second law of motion. A force of 5N...

    Text Solution

    |

  10. What is momentum? Write its SI unit. Interpret force in term of moment...

    Text Solution

    |

  11. What is momentum? Write its SI unit. Interpret force in term of moment...

    Text Solution

    |

  12. Explain why a glass pane of a window is shattered when a flying pebble...

    Text Solution

    |

  13. What happens when yiou shake a wet plece of cloth? Explain your observ...

    Text Solution

    |

  14. Javelin throw is marked foul if athlete crosses over the line for thro...

    Text Solution

    |

  15. A man falling on a cemented floor receives more injuries than a man fa...

    Text Solution

    |

  16. Which of the following has more inertia : a bicycle and a train ?

    Text Solution

    |

  17. Define 1 kg weight and express it is Newton.

    Text Solution

    |

  18. Why do you fall in the forward direction when a moving bus brakes to a...

    Text Solution

    |

  19. Name the physical quantity which is determined by the rate of change o...

    Text Solution

    |

  20. What is the mass of an object whose weight is 196 N?

    Text Solution

    |