Home
Class 11
PHYSICS
It is well known that a rain drop falls ...

It is well known that a rain drop falls under the influence of the downward gravitational force and the opposing resistive force. The latter is known to be proportional to the speed of the drop, but is otherwise undetermined. Consider a drop of mass 1.0g falling from a height of 1.00km. It hits the ground with a speed of 50.0ms^(-1)
(b) What is the work done by the unknown resistive force ?

Promotional Banner

Topper's Solved these Questions

  • WORK,ENERGY AND POWER

    JBD PUBLICATION|Exercise EXAMPLE|109 Videos

  • Thermodynamics

    JBD PUBLICATION|Exercise EXAMPLE|69 Videos

Similar Questions

Explore conceptually related problems

It is well known that a rain drop falls under the influence of the downward gravitational force and the opposing resistive force. The latter is known to be proportional to the speed of the drop, but is otherwise undetermined. Consider a drop of mass 1.0g falling from a height of 1.00km. It hits the ground with a speed of 50.0ms^(-1) (a) What is the work done by the gravitational force ?

A rain drop of mass 1.00 g falling from a height of 1 km hits the ground with a speed of 50 ms^-1 . Calculate. the gain in K.E. of the drop.

A raindrop of mass 1.00 g falling form a height of 1 km hits the ground with a speed of 50 ms^-1 . Calculate. the loss of P.E. of the drop.

A rain drop of mass 1.00 g falling from a height of 1 km hits the ground with a speed of 50 ms^-1 . Calculate. Is the gain in K.E. equal to loss of P.E.? If not, why?

When there are no external forces ,the shape of a liquid drop is determined by

What is the de-Broglie wavelength of a bullet of mass 0.040 kg travelling at the speed of 1.0km/s.

From a rifle of mass 5000 g a bullet of 20 g is fired with a velocity of 500ms^(-1) with respect to the ground. Find the velocity of recoil of the rifle.

Certain force acting on a 20 kg mass changes its velocity from 5ms ^-1 to 2ms^-1 . Calculate the work done by the force.

JBD PUBLICATION-WORK,ENERGY AND POWER-EXAMPLE
  1. A lighter body and a heavier body have same K.E. Which one has greater...

    Text Solution

    |

  2. It is well known that a rain drop falls under the influence of the dow...

    Text Solution

    |

  3. It is well known that a rain drop falls under the influence of the dow...

    Text Solution

    |

  4. To stimulate car accidents auto manufacturers study the collisions of ...

    Text Solution

    |

  5. A ball is dropped from a height 4 m.what is the height upto which the ...

    Text Solution

    |

  6. What is scalar product?

    Text Solution

    |

  7. Define the term collision. Discuss its types with examples.

    Text Solution

    |

  8. A and B are two particles having the same mass m. A is moving along X-...

    Text Solution

    |

  9. Consider the collision depicted in Figure, to be between two billiard ...

    Text Solution

    |

  10. What is scalar product?

    Text Solution

    |

  11. Define kinetic energy?

    Text Solution

    |

  12. A body constrained to move along the z-axis of a coordinate system is ...

    Text Solution

    |

  13. A trolley of mass 200 kg moves with a uniform speed of 36 km//h on a f...

    Text Solution

    |

  14. A 2 kg ball moving at 24 ms undergoes inelastic head on collision with...

    Text Solution

    |

  15. A body of mass M at rest is struck by a moving body of mass m.Prove t...

    Text Solution

    |

  16. State and prove work-energy theorem.

    Text Solution

    |

  17. Consider the following figure taking the coefficient fo friction,mu to...

    Text Solution

    |

  18. What is non-conservative force?

    Text Solution

    |

  19. Define work.Write it's units.

    Text Solution

    |

  20. What is spring constant ? What are the SI units?

    Text Solution

    |