Home
Class 12
PHYSICS
An 8 kg block accelerates uniformly from...

An 8 kg block accelerates uniformly from rest to a velocity of `4 m s^(-1)` in 40 second. The instantaneous power at the end of 8 second is `P xx 10^(-2)` watt. Find the value of P.

A

0.64 W

B

0.32 W

C

0.16 W

D

0.08 W

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise IMPECCABLE|54 Videos

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise ENABLE|50 Videos

  • WAVE MOTION

    VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE LEVEL 2 (TRUE FALSE TYPE)|4 Videos

Similar Questions

Explore conceptually related problems

A block of mass 10 kg accelerates uniformly from rest to a speed of 2 m/s in 20 sec. The average power developed in time interval of 0 to 20 sec is

A body of mass m accelerates uniformly from rest to v_1 in time t_1 . As a function of time t, the instantaneous power delivered to the body is

A body of mass m , accelerates uniformly from rest to V_(1) in time t_(1) . The instantaneous power delivered to the body as a function of time t is.

A body starts from rest and acquires a velocity 10 m s^(-1) in 2 s. Find the acceleration.

A car of mass 1000kg accelerates uniformly from rest to a velocity of 54km//h in 5 seconds. Calculate (i) its acceleration (ii) its gain in KE (iii) average power of the engine during this period.

If the mean of 6, 4, 7, p and 10 is 8 Find the value of p .

A body starts from rest and accelerates with 4 "m/s"^2 for 5 seconds. Find the distance travelled with 5 seconds.

A car starts form rest and accelerates uniformly for 10 s to a velocity of 8 ms ^(-1) . It then runs at a constant velocity an dis finally brought to rest in 64 m with a constant retardation. The totla distance covered by the car is 584 m Find the value of acceleration, retardation, and totl time taken.

An object of mass 100kg is accelerated uniformly from a velocity of 5m//s to 8m//s in 6 s . Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object.

The wheel of a car, accelerated uniformly from rest, rotates through 1.5 rad during the first second. Find the angle rotated during the next second.

VMC MODULES ENGLISH-WORK ENERGY AND POWER -EFFICIENT
  1. A particle of mass 1 kg is moving along x - axis and a force F is also...

    Text Solution

    |

  2. If a projectile is projected with initial speed u and angle theta from...

    Text Solution

    |

  3. An 8 kg block accelerates uniformly from rest to a velocity of 4 m s^(...

    Text Solution

    |

  4. Consider the following statement. When jumping from some height, you s...

    Text Solution

    |

  5. An engine is working at a constant power draws a load of mass m agains...

    Text Solution

    |

  6. The potential energy of a system increase,if work is done

    Text Solution

    |

  7. A body projected vertically from the earth reaches a height equal to e...

    Text Solution

    |

  8. Power applied to a particle varies with time as P=(4t^(3)-5t+2) watt, ...

    Text Solution

    |

  9. An engine develops 10 kW of power. How much time will it take to lift ...

    Text Solution

    |

  10. What is work done when body will displaces perpendicular to the force ...

    Text Solution

    |

  11. A tube - well pump out 2400 kg of water per minute. If water is comin...

    Text Solution

    |

  12. A mass m moving horizontal (along the x-axis) with velocity v collides...

    Text Solution

    |

  13. A car of mass m starts from rest and accelerates so that the instantan...

    Text Solution

    |

  14. A solid cylinder of mass 3 kg is rolling on a horizontal surface with ...

    Text Solution

    |

  15. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

    Text Solution

    |

  16. A sheel of mass 200g is ejected from a gun of mass 4 kg by an explosio...

    Text Solution

    |

  17. Two particles of masses m(1), m(2) move with initial velocities u(1) a...

    Text Solution

    |

  18. Two similar springs P and Q have spring constant K(P)"and "K(Q) , suc...

    Text Solution

    |

  19. What is the minimum velocity with which a body of mass m must enter a ...

    Text Solution

    |

  20. A body of mass 1 kg begins to move under the action of a time dependen...

    Text Solution

    |