Home
Class 9
PHYSICS
A man throws a mass of 2 kg vertically u...

A man throws a mass of 2 kg vertically upwards with a velocity of `20ms^-1`. What is the potential energy of the mass after 1 s?

Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    MODERN PUBLICATION|Exercise EXERCISE|191 Videos

  • SOUND

    MODERN PUBLICATION|Exercise EXERCISE|137 Videos

Similar Questions

Explore conceptually related problems

A man throws a ball of mass 0.5 kg vertically upwards with a velocity of 1ms^( -1) . What will be its initial momentum ? What would be its momentum at the highest point of its reach ?

An object of mass 15 kg moving with a uniform velocity of 4ms^-1 . What is the kinetic energy possessed by the object?

A car is moving with a velocity of 54 kmh^-1 . What is the kinetic energy of a boy of mass 40 kg sitting in the car?

A ball is thrown vertically upwards with a velocity of 49 ms^-1 . Calculate :The maximum height to which it rises

A ball is thrown vertically upwards with a velocity of 49 ms^-1 . Calculate :The total time it takes to return to the surface of earth.

A boy of mass 40 kg climbs vertically upwards on a coconut tree to a height of 10m. Calculate the potential energy gained.

A stone is throw in a vertically upward direction with a velocity of 5ms^(-1) if the stone during its motion is 10ms^(-2) in the downward direction . What will be the height attained by the stone and how much time will it take to reach there ?

MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
  1. A man throws a mass of 2 kg vertically upwards with a velocity of 20ms...

    Text Solution

    |

  2. Does work has direction associated with it?

    Text Solution

    |

  3. For what value theta is work done maximum

    Text Solution

    |

  4. For what value theta is work done zero?

    Text Solution

    |

  5. When work is measured in J, force is measured in and displacement is ...

    Text Solution

    |

  6. A person is walking on a horizontal road and carrying a briefcase. The...

    Text Solution

    |

  7. Work done by centripetal force is zero . (T or F)

    Text Solution

    |

  8. A coolie moves on a horizontal platform with luggage on his head. The ...

    Text Solution

    |

  9. Define work. Write its formula. What is the SI unit of work? Is it a s...

    Text Solution

    |

  10. Give three situations in which a force produces displacement but still...

    Text Solution

    |

  11. A horizontal force acts on a body placed on a smooth horizontal table ...

    Text Solution

    |

  12. A horizontal force of 20 N is required to keep a body moving in a hori...

    Text Solution

    |

  13. Find the work done in lifting a 50 kg bucket a water through a vertic...

    Text Solution

    |

  14. Does kinetic energy of a body depend on the direction of motion of the...

    Text Solution

    |

  15. When you are climbing stairs, work done by the weight is positive. (T ...

    Text Solution

    |

  16. The ratio S.I unit to C.G.S. unit of work is .

    Text Solution

    |

  17. Can every force do work?

    Text Solution

    |

  18. When work is done on a body then kinetic energy of the body. (increase...

    Text Solution

    |

  19. A book falls freely from the table top. Is work done by some force dur...

    Text Solution

    |

  20. A boy sitting in a moving car possesses kinetic energy.

    Text Solution

    |

  21. If momentum of a body is doubled, the kinetic energy becomes times.

    Text Solution

    |