Home
Class 11
PHYSICS
A body is acted on by a force given by F...

A body is acted on by a force given by `F=(10+2t)N`. The impulse received by by the body during the first four second is

A

`40 N s`

B

`56 N s`

C

`72 N s`

D

`32 N s`

Text Solution

Verified by Experts

The correct Answer is:
B

`J=int F.dt`
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    NARAYNA|Exercise LEVEL II(H.W)|51 Videos
  • CIRCULAR MOTION

    NARAYNA|Exercise IIT QUES.|4 Videos
  • CALORIMETRY

    NARAYNA|Exercise Level- II (H.W)|11 Videos
  • COLLISION

    NARAYNA|Exercise Level-II (H.W)|54 Videos

Similar Questions

Explore conceptually related problems

The position of a Particle of Mass 4 g,acted upon by a constant force is given by x= 4t^(2) +t,where x is in metre and t in second .The work done during the first 2 seconds is

A force F is acted on a body as shown in the figure. Find the impulse of the force in first four seconds.

A body of mass 10 kg is upon by a force given by equation F=(3t^(2)-30) newtons. The initial velocity of the body is 10 m/s. The velocity of the body after 5 sec. is

A force given by the relation F = 8t, acts on a body of mass 2 kg, initially at rest. Find the work done by this force on the body during first 2 seconds of its motion

A force given by the relation F=8t , acts on a body of mass 2 kg , initialiy at rest. Find the work done by this force on the body during first 2 seconds of its motion.

The force acting on the block is given by F = 5 - 2t . The frictional force acting on the block after time t = 2 seconds will be: ( mu = 0.2)

A force of 5 N acts on a 15 kg body initially at rest. The work done by the force during the first second of motion of the body is

NARAYNA-CIRCULAR MOTION-LEVEL I(H.W)
  1. An impules is supplied to a moving object with the force at an angle 1...

    Text Solution

    |

  2. A 20 kg body is pushed with a force of 7N for 1.5 sec then with a forc...

    Text Solution

    |

  3. A body is acted on by a force given by F=(10+2t)N. The impulse receive...

    Text Solution

    |

  4. A unidirectional force F varying with time t as shown in the Fig. acts...

    Text Solution

    |

  5. If the average velocityof a body moving with uniform acceleration unde...

    Text Solution

    |

  6. A 6.0 kg object is suspended by a vertical string from the ceilling of...

    Text Solution

    |

  7. A young man of mass 60 kg stands on the floor of a lift which is accel...

    Text Solution

    |

  8. Three masses of 16 kg, 8 kg and 4 kg are placed in contact as shown in...

    Text Solution

    |

  9. A block of mass M is pulled along a horizontal frictionless surface by...

    Text Solution

    |

  10. Three equal masses A,B and C are pulled with a constant force F. They ...

    Text Solution

    |

  11. A coin is dropped in a lift. It takes time t(1) to reach the floor whe...

    Text Solution

    |

  12. A light string passing over a smooth light pulley connects two blocks ...

    Text Solution

    |

  13. A pendulum bob is hanging from the roof of an elevator with the help o...

    Text Solution

    |

  14. Three block of masses m(1) = 10kg, m(2) =20 kg and m(3) = 30kg are on ...

    Text Solution

    |

  15. A bullet of mass 50g is fired from a gun of mass 6kg with a velocity o...

    Text Solution

    |

  16. A space craft of mass 2000 kg moving with a velocity of 600m//s sudden...

    Text Solution

    |

  17. A person weighing 60kg In a small boat of mass 140 kg which is at rest...

    Text Solution

    |

  18. A body of mass 40kg resting on a rough horizontal surface is subjected...

    Text Solution

    |

  19. What is the angle of friction between two surfaces in contact , if coe...

    Text Solution

    |

  20. The coefficient of friction between the ground and the wheels of a car...

    Text Solution

    |