Home
Class 11
PHYSICS
A particle of mass 0.5kg travels in a st...

A particle of mass `0.5kg` travels in a straight line with velocity `v=ax^(3//2)` where `a=5m^(-1//2)s^-1`. What is the work done by the net force during its displacement from `x=0` to `x=2m`?

A

50 J

B

20 J

C

80 J

D

`45.5 J`

Text Solution

Verified by Experts

The correct Answer is:
A

`W = Delta KE = (1)/(2) mv^(2) - (1)/(2) m u^(2)`.
Promotional Banner

Topper's Solved these Questions

  • WORK POWER AND ENERGY

    NARAYNA|Exercise NCERT (Based Questions)|45 Videos
  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level-V (Single Answer)|24 Videos
  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level- II (C.W)|68 Videos
  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE IV|43 Videos

Similar Questions

Explore conceptually related problems

A body of mass 0.5 kg travels in a straight line with velocity v= kx^(3//2) where k=5m^(-1//2)s^(-1) . The work done by the net force during its displacement from x=0 to x=2 m is

A body of mass 0.5 kg travels in a straight line with velocity v =a x^(3//2) where a = 5 m//s^(2) . The work done by the net force during its displacement from x = 0 to x = 2 m is

A particle of mass 0.5kg travels in a straight line with a velocity v=(5x^(5//2))m//s . How much work is done by the net force during the displacement from x=0 to x=2m ?

A body of mass 0.5 kg travels in a straight line with velocity v=5x^(3//2) . The work done by the net force during its displacement from x=0 to x=2 m is

A particle of mass 2kg travels along a straight line with velocity v=asqrtx , where a is a constant. The work done by net force during the displacement of particle from x=0 to x=4m is

A particle of mass m moves on a straight line with its velocity varying with the distance traveled. Find the total work done by all the forces during a displacement x=0 to x=d if the velocity is equal to (a) v=lamdasqrtx and (b) v=lamdax is constant.

A body of mass m travels in a straight line with a velocity v = kx^(3//2) where k is a constant. The work done in displacing the body from x = 0 to x is proportional to:

A force is given by F=kx^(2) where x is in meters and k=10 N//m^(2) What is the work done by this force when it acts from x=0 to x=0.1m ?

NARAYNA-WORK POWER AND ENERGY-Level- III (C.W)
  1. A large slab of mass 5kg lies on a smooth horizontal surface, with a b...

    Text Solution

    |

  2. In the pulley-block system shown in figure, strings are light. Pulleys...

    Text Solution

    |

  3. A particle of mass 0.5kg travels in a straight line with velocity v=ax...

    Text Solution

    |

  4. A particle of mass 2 kg starts moving in a straight line with an initi...

    Text Solution

    |

  5. A running man has half the KE that a body of half his mass has. The ma...

    Text Solution

    |

  6. The kinetic energy (KE) versus time graph for a graph for a particle m...

    Text Solution

    |

  7. A lifting machine, having an efficiency of 80 % uses 2500 J of energy ...

    Text Solution

    |

  8. A chain (AB) of length l loaded in a smooth horizontal table so that i...

    Text Solution

    |

  9. A block of mass m=1kg moving on a horizontal surface with speed v(i)=2...

    Text Solution

    |

  10. A 1.5 kg block is initially at rest on a horizontal frictionless surf...

    Text Solution

    |

  11. The bob A of a simple pendulum is released from a horizontal position ...

    Text Solution

    |

  12. System shown in figure is released from rest . Pulley and spring is ma...

    Text Solution

    |

  13. The potential energy of a particle of mass m is given by U = (1)/(2) ...

    Text Solution

    |

  14. A 1kg block situated on a rough incline is connected to a spring of sp...

    Text Solution

    |

  15. A light spring of force constant 'K' is held between two blocks of mas...

    Text Solution

    |

  16. A ball of mass m is released from A inside a smooth wedge of mass m as...

    Text Solution

    |

  17. Power supplied to a mass 2 kg varies with time as P = (3t^(2))/(2) wat...

    Text Solution

    |

  18. A particle of mass in is moving in a circular with of constant radius ...

    Text Solution

    |

  19. A constant power P is applied to a particle of mass m. The distance tr...

    Text Solution

    |

  20. A body is moved from rest along a straight line by a machine deliverin...

    Text Solution

    |