Home
Class 11
PHYSICS
A force of 100 N acts on a body at an an...

A force of 100 N acts on a body at an anle `30^@` with the horizontal.If the body moves a distance 20 m in 5 seconds in the horizontal direction,calculate the power being suppied by the source of force.

Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER-01

    JBD PUBLICATION|Exercise EXERCISE|35 Videos
  • MODEL TEST PAPER-04

    JBD PUBLICATION|Exercise EXERCISE|33 Videos

Similar Questions

Explore conceptually related problems

A force of 10 N moves a body with a constatn speed of 2ms^-1 . Calculate the power of the body?

A constant force of 15 N acts on a body of mass 5 kg. Find the acceleration produced.

A body of mass 10 kg at rest was moved by a constant force 50 N. Find the K.E. of the body at the end of 5 seconds.

A car of mass 1000 kg starts from rest and comes down an inclined slope. If it travels a distance of 300 m in 30 seconds, calculate force acting on the bus

A body P of mass m is thrown with velocity u at an angle 30^@ to the horizontal and another body Q is of teh same mass be projected with velocity u at an angle 60^@ to the horizontal .Find the ratio of the horizonta range nd maximum heights of P and Q.

These are three forces F_1, F_2,F_3 acting on a body, all acting on a point P on the body. the body is found to move with uniform speed. Show that the torque acting on the body about any point due to these three forces is zero.

A horizontal force acts on a body placed on a smooth horizontal table . If the force applied is 10N,find the total work done when the displacement of body is 5m.​

JBD PUBLICATION-MODEL TEST PAPER-02-EXERCISE
  1. Draw a graph to show the motion of a body: under constant retardation.

    Text Solution

    |

  2. A bomb of mass 10 kg at rest explodes into two parts of 3 kg and 7 kg....

    Text Solution

    |

  3. A force of 100 N acts on a body at an anle 30^@ with the horizontal.If...

    Text Solution

    |

  4. Prove mathematically that the value of acceleration due to gravity has...

    Text Solution

    |

  5. Define Angle of contact.

    Text Solution

    |

  6. What are the limitations of dimensional analysis?

    Text Solution

    |

  7. Write four characteristics of any natural force.

    Text Solution

    |

  8. Using time velocity graph,derive the relationv^2-u^2 = 2aS,where every...

    Text Solution

    |

  9. From second law of motion ,prove that F = ma and hence deduce first la...

    Text Solution

    |

  10. Show that sum of P.E. and k.E. of a freely falling body is conserved.

    Text Solution

    |

  11. Why does a body becomes weightless at the centre of earth ?

    Text Solution

    |

  12. What is surface tension? What is the effect of temperature on surface ...

    Text Solution

    |

  13. A 50 kg girl whose leg bones are 5m^2 in area and 50 cm long falls fr...

    Text Solution

    |

  14. State first law of thermodynamics.

    Text Solution

    |

  15. If 5% of the hailstones get melted before reaching the earth,find teh ...

    Text Solution

    |

  16. Calculate the external work done when an ideal gas is expanded isother...

    Text Solution

    |

  17. Define progressive wave.

    Text Solution

    |

  18. Draw a graph to show the variation s of P.E., K.E. and total energy of...

    Text Solution

    |

  19. What is a simple pendulum? Show that motion of simple pendulum is S.H....

    Text Solution

    |

  20. What is Doppler's effect?Derive a general expression for the apparent ...

    Text Solution

    |