Home
Class 12
PHYSICS
The energy required to accelerate a car ...

The energy required to accelerate a car from rest to `10 ms^(-1)` is W. the energy required to accelerate the car froms `10 ms^(-2)` to `20 ms^(-1)`.is:

A

3 W

B

4 W

C

2 W

D

W

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • WORK , POWER , ENERGY AND COLLISIONS

    MODERN PUBLICATION|Exercise Recent Competitive Questions|8 Videos

  • WAVE OPTICS

    MODERN PUBLICATION|Exercise Recent Competitive Questions|18 Videos

Similar Questions

Explore conceptually related problems

The enrgy The energy reqduired to accelerate a car from 10 m/s to 20 m/s compared with that required to accelerate from 0 to 10 m/sec in the same interval of time overcoming same resistance is :

The energy (in W) required to excite an electron from n = 2 to n = 4 state in hydrogen atom

The energy required to break on bond in DNA is 10^-20J. Express it in eV.

Energy required to form glucose from pyruvate is equivalent to

Energy required for ATP synthesis in PSII comes from

A car accelerates uniformly from 18 km h^(-1) to 36 km h^(-1) in 5s. Calculate the acceleration

A car accelerates uniformly from 18 km h^(-1) to 36 km h^(-1) in 5s. Calculate the distance covered by the car in that time.

In the uniform electric field of E = 1 xx 10^(4) NC^(-1) an electron is accelerated from rest . The velocity of the electron when it has travelled a distance of 2 xx 10^(-2) m is nearly … ms^(-1) ( e/m of electron = 1.8 xx 10^(11) C kg^(-1) )

MODERN PUBLICATION-WORK , POWER , ENERGY AND COLLISIONS-Revision Test
  1. A lorry and a car moving with the same kinetic energy are bought to re...

    Text Solution

    |

  2. The power of motor pump is 2 KW. The water raised by the pump per minu...

    Text Solution

    |

  3. The energy required to accelerate a car from rest to 10 ms^(-1) is W. ...

    Text Solution

    |

  4. A man weighing 60 kg lifts a body of 15 kg to a top of building 10 m h...

    Text Solution

    |

  5. A sphere of mass M moving with velocity w collides elastically with an...

    Text Solution

    |

  6. The particle moves along x-axis from x= x1 to x=x2 under the influence...

    Text Solution

    |

  7. An engine pumps a liquid of density ‘d’ continuously through a pipe of...

    Text Solution

    |

  8. A shell at rest at the origin explodes into three pieces of masses 1 k...

    Text Solution

    |

  9. K.E. of body is increased by 300 percent, then percentage increase in ...

    Text Solution

    |

  10. A long spring is stretched by 2 cm having potential energy as V. If th...

    Text Solution

    |

  11. A stationary particle explodes into two particles of masses m1 and m2 ...

    Text Solution

    |

  12. Two masses 1 gm and 4 gm are moving with equal kinetic energies. The r...

    Text Solution

    |

  13. A bullet of mass 'm' moving with velocity *v' strikes a block of mass ...

    Text Solution

    |

  14. A ball collides head-on with another at rest having 3 times the mass o...

    Text Solution

    |

  15. A body of mass 'm' moving with 3 km hr^(-1) collides with a body of ma...

    Text Solution

    |

  16. A 2.5 kg mass moving at a speed of 15 ms^(-1) collides with 5 kg objec...

    Text Solution

    |

  17. A ball is dropped on a horizontal plate from a height.The total distan...

    Text Solution

    |

  18. Water is flowing in a river at 2 ms^(-1). The river is 50 m wide and h...

    Text Solution

    |

  19. A ball dropped from a height of 2.43 m attains a height of 3 cm after ...

    Text Solution

    |

  20. In one dimensional motion a 1 kg body experiences a force which is fun...

    Text Solution

    |