Home
Class 12
PHYSICS
If impulse I varies time t as I(kg ms^(-...

If impulse I varies time t as I`(kg ms^(-1))=20t^(2)-40t`.
The change in momentum is minimum at :-

A

t = 2s

B

t = 1s

C

`t=(1)/(2)s`

D

`t=(3)/(2)s`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    AAKASH INSTITUTE|Exercise Assignment (SECTION-A)|65 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE|Exercise Assignment (SECTION-B)|44 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE|Exercise Example|24 Videos

  • KINETIC THEORY

    AAKASH INSTITUTE|Exercise EXERCISE (ASSIGNMENT) SECTION - D Assertion - Reason Type Questions|10 Videos

  • MAGNETISM AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION D)|26 Videos

Similar Questions

Explore conceptually related problems

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

A particle moving in a straight line describes a distance xcm from a fixed point on the line at time ts ,where x=t^(5)-40t^(3)+30t^(2)+180t+240. Find when the acceleration is minimum and find the minimum value of acceleration.

Two coils, 1 & 2, have a mutual inductance = M and resistances R each. A current flows in coil 1, which varies with time as: I_(1)=kt^(2) , where K is a constant and 't' is time. Find the totalcharge that has flown through coil 2, between t=0 and t=T.

If velocity v varies with time t as v=2t^(2) , then the plot between v and t^(2) will be given as :

The momentum p (in kg ms^(-1) ) of a particle is varying with time t (in second) as p=2+3 t^(2) . The force acting on the particle at t=3s will be

Displacement of a particle of mass 2 kg varies with time as s=(2t^(2)-2t + 10)m . Find total work done on the particle in a time interval from t=0 to t=2s .

The momentum P ( in kg ms^(-1) ) of a particle is varying with time t ( in second ) as p=2+ 3t^(2) . The force acting on the particle at t=3s will be

The current in a coil varies with respect to time t as I=3t^(2)+2t . If the inductance of coil be 10 mH, the value of induced e.m.f. at t=2s will be-

AAKASH INSTITUTE-LAWS OF MOTION-EXERCISE
  1. The working of rocket is based on the principle of .

    Text Solution

    |

  2. A ball is moving with speed 20 ms^(-2) collides with a smooth surface...

    Text Solution

    |

  3. If impulse I varies time t as I(kg ms^(-1))=20t^(2)-40t. The change ...

    Text Solution

    |

  4. A machine gun fires n bullets per second with speed u, and mass of ea...

    Text Solution

    |

  5. An initially stationary device lying on a frictionless floor explodes ...

    Text Solution

    |

  6. If final momentum is equal to initial momentum of the system then

    Text Solution

    |

  7. A ball is moving towards the wall as shown in diagram then momentum is...

    Text Solution

    |

  8. A body of mass 5 kg is moving with velocity of v=(2hati+6hatj)ms^(-1) ...

    Text Solution

    |

  9. A cart loaded with sand moving with velocity v. Sand is falling throu...

    Text Solution

    |

  10. A particle of mass m strikes elastically on a wall with velocity v, at...

    Text Solution

    |

  11. The average force necessary to stop a hammer with momentum p (in N-s) ...

    Text Solution

    |

  12. Two blocks of mass 2 kg and 4 kg are accelerated with same acceleratio...

    Text Solution

    |

  13. Three blocks of masses m(1)=4kg, m(2)=2kg, m(3)=4kg are connected with...

    Text Solution

    |

  14. The tension in the string connected between blocks is

    Text Solution

    |

  15. The equation of graph shown in figure is y=2x^(2). The slope of graph ...

    Text Solution

    |

  16. A block of mass m as shown in figure is pulled by a force 40N. The ten...

    Text Solution

    |

  17. A block is stationary on a rough inclined plane. How many forces are a...

    Text Solution

    |

  18. In the given arrangement, the normal force applied by block on the gro...

    Text Solution

    |

  19. A book of mass 5 kg is placed on a table and it is pressed by 10 N for...

    Text Solution

    |

  20. Three blocks are placed as shown in figure. Mass of A, B and C are m(1...

    Text Solution

    |