Home
Class 11
PHYSICS
A motor drives a body along a straight l...

A motor drives a body along a straight line with a constant force. The power P developed by the motor muat vary with time t as

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
(a) F=constant
`:.` A=constant or v =at
Now, `P=F.v=F.at or P prop t` (as F and a both are constant )
Hence,P-t graph is a straight line passing through origin.
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    DC PANDEY|Exercise MEDICAL ENTRANCE SPECIAL QUESTIONS|16 Videos

  • WORK, ENERGY AND POWER

    DC PANDEY|Exercise MATCH THE COLUMNS|7 Videos

  • WORK, ENERGY AND POWER

    DC PANDEY|Exercise CHECK POINT 6.3|10 Videos

  • WORK, ENERGY & POWER

    DC PANDEY|Exercise Level 2 Comprehension Based|2 Videos

  • WORK, POWER AND ENERGY

    DC PANDEY|Exercise E Integer Type Questions|11 Videos

Similar Questions

Explore conceptually related problems

A machine is delivering constant power to drive a body along a straight line. What is the relation between the distance travelled by the body against time ?

A body moves under the action of a constant force along a straight line. The instantaneous power developed by this force with time t is correctly represented by.

A body is moves along a straight line by a machine dellvering a constant power . The distance moved by the body in time t is propertional as

A body is moved along a straight line by a machine delivering constant power . The distance moved by the body in time t is proportional to

A body of mass m at rest starts moving along straight line by a machine delivering a constant power distance travelled by body in time t is

The power supplied by a force acting on a particle moving in a straight line is constant. The velocity of the particle varies with the displacement x as :

The power supplied by a force acting on a particle moving in a straight line is constant. The velocity of the particle varies with displacement as x^(1/K) . Find the value of K.

DC PANDEY-WORK, ENERGY AND POWER-EXERCISES(TAKING IT TOGETHER)
  1. A particle is released from height H. At cartain height from the groun...

    Text Solution

    |

  2. Power applied to a particle varices with time as P =(3t^(2)-2t + 1) wa...

    Text Solution

    |

  3. A motor drives a body along a straight line with a constant force. The...

    Text Solution

    |

  4. Power supplied to a mass 2 kg varies with time as P = (3t^(2))/(2) wat...

    Text Solution

    |

  5. A force F acting on a body depends on its displacement S as FpropS^(-1...

    Text Solution

    |

  6. A ball is thrown vertically upwards with a velocity of 10 ms^(-1). It ...

    Text Solution

    |

  7. An open knife of mass m is dropped from a height h on a wooden floor. ...

    Text Solution

    |

  8. The force acting on a body moving along x-axis varitian of the particl...

    Text Solution

    |

  9. How much mass is converted into energy per day in a nuclear power plan...

    Text Solution

    |

  10. A block of mass M is pulled along a horizontal surface by applying a f...

    Text Solution

    |

  11. If v be the instantaneous velocity of the body dropped from the top of...

    Text Solution

    |

  12. A block of mass 1 kg slides down a rough inclined plane of inclination...

    Text Solution

    |

  13. A proton is kept at rest. A positively charged particle is released fr...

    Text Solution

    |

  14. Two inclined frictionless tracks, one gradual and the other steep meet...

    Text Solution

    |

  15. The potential energy function for a particle executing linear SHM is g...

    Text Solution

    |

  16. A body of mass 0.5 kg travels in a straight line with velocity v =a x^...

    Text Solution

    |

  17. A raindrop falling from a height h above ground, attains a near termin...

    Text Solution

    |

  18. In a shotput event an athlete throws the shotput of mass 10 kgwith an...

    Text Solution

    |

  19. The potential energy between two atoms in a molecule is given by U(x)=...

    Text Solution

    |

  20. In position A kinetic energy of a particle is 60 J and potential energ...

    Text Solution

    |