Home
Class 12
PHYSICS
The position (x) of body moving along x-...

The position (x) of body moving along x-axis at time (t) is given by `x=3t^(3)` where x is in matre and t is in second. If mass of body is 2 kg, then find the instantaneous power delivered to body by force acting on it at `t=2` s.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RACE

    ALLEN |Exercise Basic Maths (CIRCULAR MOTION)|16 Videos

  • RACE

    ALLEN |Exercise Basic Maths (COLLISION AND CENTRE OF MASS )|12 Videos

  • RACE

    ALLEN |Exercise Basic Maths (FRICTION)|13 Videos

  • NEWTONS LAWS OF MOTION

    ALLEN |Exercise EXERCISE-III|28 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN |Exercise Example|1 Videos

Similar Questions

Explore conceptually related problems

The position (x) of body moving along x-axis at time (t) is given by x=3t^(2) where x is in matre and t is in second. If mass of body is 2 kg, then find the instantaneous power delivered to body by force acting on it at t=4 s.

Position of particle moving along x-axis is given as x=2+5t+7t^(2) then calculate :

The position (x) of a particle of mass 2 kg moving along x-axis at time t is given by x=(2t^(3)) metre. Find the work done by force acting on it in time interval t=0 to t=2 is :-

The displacement of a particle is given by x = (t-2)^(2) where x is in metre and t in second. The distance covered by the particle in first 4 seconds is

The speed(v) of a particle moving along a straight line is given by v=(t^(2)+3t-4 where v is in m/s and t in seconds. Find time t at which the particle will momentarily come to rest.

A car moves along a straight line whose equation of motion is given by s=12t+3t^(2)-2t^(3) where s is in metres and t is in seconds. The velocity of the car at start will be :-

A point mass of 0.5 kg is moving along x- axis as x=t^(2)+2t , where, x is in meters and t is in seconds. Find the work done (in J) by all the forces acting on the body during the time interval [0,2s] .

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.

The position x of a particle with respect to time t along the x-axis is given by x=9t^(2)-t^(3) where x is in meter and t in second. What will be the position of this particle when it achieves maximum speed along the positive x direction

The x-coordinate of a particle moving on x-axis is given by x = 3 sin 100 t + 8 cos^(2) 50 t , where x is in cm and t is time in seconds. Which of the following is/are correct about this motion

ALLEN -RACE-Basic Maths (WORK POWER & ENERGY)
  1. The position (x) of body moving along x-axis at time (t) is given by ...

    Text Solution

    |

  2. The velocity (v) of a particle of mass m moving along x-axis is given ...

    Text Solution

    |

  3. Force F on the particle of mass 0.1 kg varies with distance x as shown...

    Text Solution

    |

  4. The position (x) of body moving along x-axis at time (t) is given by ...

    Text Solution

    |

  5. A body of mass m, accelerates uniformly from rest to V(1) in time t(1)...

    Text Solution

    |

  6. A car of mass m has an engine which can deliver power P. The minimum t...

    Text Solution

    |

  7. The rate of doing work by force acting on a particle moving along x-ax...

    Text Solution

    |

  8. An object starts from rest and is acted upon by a variable force F as ...

    Text Solution

    |

  9. Which of the following force is not conservative :-

    Text Solution

    |

  10. A disc of mass m and radius r is free to rotate about its centre as sh...

    Text Solution

    |

  11. A particle of mass m is projected with speed u at an angle theta with ...

    Text Solution

    |

  12. A cubical block of mass m and edge a slides down a rough inclned plane...

    Text Solution

    |

  13. The torque of force vecF=-2hati+2hatj+3hatk acting on a point vecr=hat...

    Text Solution

    |

  14. torque of a force of megnitude 20 N acting along positive x direction ...

    Text Solution

    |

  15. A disc is rotating with angular velocity omega. A force F acts at a po...

    Text Solution

    |

  16. When a torque acting upon a system is zero, which of the following wil...

    Text Solution

    |

  17. The thin rod shown below has mases M and length L. A force F acts at o...

    Text Solution

    |

  18. Two equal and opposite forces are allplied tangentially to a uniform d...

    Text Solution

    |

  19. A wheel having moment of inertia 4 kg m^(2) about its axis, rotates at...

    Text Solution

    |

  20. For equilibrium of the system, value of mass m should be :-

    Text Solution

    |