Home
Class 12
PHYSICS
Power applied to a particle varices with...

Power applied to a particle varices with time as `P =(3t^(2)-2t + 1)` watt, where t is in second. Find the change in its kinetic energy between time `t=2s` and `t = 4 s` .

A

32 J

B

46 J

C

61 J

D

100 J

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 89

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET SET 91

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

Power applied to a particle varies with time as P =(3t^(2)-2t + 1) watt, where t is in second. Find the change in its kinetic energy between time t=2s and t = 4 s .

Power delivered to a paticle varies with time as P = (3t^(2) - 2t) watt, where 't' is in seconds, then change in its kinetic energy between time t = 1 to t = 3s .

Power applied to a particle varies with time as P=(4t^(3)-5t+2) watt, where t is in second. Find the change its K.F. between time t = 2 and t = 4 sec.

If displacements of a particle varies with time t as s = 1/t^(2) , then.

Power supplied to a particle of mass 2kg varies with time as P=3t^(2)/2 watt,where t is in seconds If velocity of particle at t=0 is v=0 the velocity of particle at t=2 sec will be ?

NTA MOCK TESTS-NTA NEET SET 90-PHYSICS
  1. If A is amplitude of a particle in SHM, its displacement from the mean...

    Text Solution

    |

  2. A pendulum consisting of a small sphere of mass m, suspended by a ine...

    Text Solution

    |

  3. The number of photons falling per second on a completely darkened plat...

    Text Solution

    |

  4. The energy flux of the sunlight reaching the surface of the earth is 1...

    Text Solution

    |

  5. The pressure inside two soap bubbles is 1.01 and 1.02 atmosphere. The ...

    Text Solution

    |

  6. A capillary tube of the radius r is immersed in water and water rise i...

    Text Solution

    |

  7. A thin lens focal length f(1) and its aperture has diameter d. It form...

    Text Solution

    |

  8. A plano-concave lens is made of glass of refractive index 1.5 and the ...

    Text Solution

    |

  9. The moment of inertia of a rod about an axis through its centre and pe...

    Text Solution

    |

  10. A solid sphere of mass 2 kg is rolling on a frictionless horizontal...

    Text Solution

    |

  11. In the given circuit P and Q from the inputs. The output Y is

    Text Solution

    |

  12. In a n-p-n transister circuit the collector current is 9 mA. If 90% of...

    Text Solution

    |

  13. A metallic rod l cm long, A square cm in cross-section is heated throu...

    Text Solution

    |

  14. Let x={:[(a^(2)b^(2))/(c)]:} be the physical quantity. If the percenta...

    Text Solution

    |

  15. In Young's experiment the wavelenght of red light is 7.8xx10^(-5) cm ...

    Text Solution

    |

  16. According to Huygens' principle, during rafraction of light from air t...

    Text Solution

    |

  17. A car is moving with 90 km h^(-1) blows a horn of 150 Hz, towards a cl...

    Text Solution

    |

  18. A standing wave propagating with velocity 300ms^(-1) in an open pipe o...

    Text Solution

    |

  19. An object of mass 10 kg falls from rest through a vertical distance of...

    Text Solution

    |

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

    Text Solution

    |