Home
Class 12
PHYSICS
A particle of mass 2/3 kg with velocity ...

A particle of mass 2/3 kg with velocity v=-15m/s at t=-2 s is acted upon by a force `f=k-betat^2`. Here k=8 N and `beta=2N//s^2`. The motion is one dimensional. Then the speed at which the particle acceleration is zero again, is

A

1 m/s

B

16 m/s

C

17 m/s

D

32 m/s

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SOLVED PAPER 2018

    KVPY PREVIOUS YEAR|Exercise EXAMPLE|24 Videos

Similar Questions

Explore conceptually related problems

A particle of mass 2 kg moving with a velocity of 3 m//s is acted upon by a force which changes its direction of motion by an angle of 90^(@) without changing its speed. What is the magnitude of impulse experienced by the particle?

A particle of mass 2kg is moving in free space with velocity vecv_0=(2hati-3hatj+hatk)m//s is acted upon by force vecF=(2hati+hatj-2hatk)N . Find velocity vector of the particle 3s after the force starts acting.

A particle of mass 2 kg starts motion at time t = 0 under the action of variable force F = 4t (where F is in N and t is in s). The work done by this force in first two

A particle of mass m is acted upon by a force F= t^2-kx . Initially , the particle is at rest at the origin. Then

A particle of mass m initially at rest. A variabl force acts on the particle f=kx^(2) where k is a constant and x is the displacment. Find the work done by the force f when the speed of particles is v.

A particle of mass 1 kg has a velocity of 2m//s . A constant force of 2N acts on the particle for 1s in a direction perpendicular to its initial velocity. Find the velocity and displacement of the particle at the end of 1 s.

A particle is moving with velocity v=4t^(3)+3 t^(2)-1 m//s . The displacement of particle in time t=1 s to t=2 s will be

A particle whose mass is m=500 g, is acted upon by two constant forces , 2N and 3N. By their action it moves with acceleration a=2sqrt(19) m//s^(2)

KVPY PREVIOUS YEAR-SOLVED PAPER 2019-EXAMPLE
  1. A train is moving slowly at 2 m/s next to a railway platform. A man, 1...

    Text Solution

    |

  2. A point mass M moving with a certain velocity collides with a stationa...

    Text Solution

    |

  3. A particle of mass 2/3 kg with velocity v=-15m/s at t=-2 s is acted up...

    Text Solution

    |

  4. As shown in the schematic below, a rod of uniform cross-sectional area...

    Text Solution

    |

  5. A photon falls through a height of 1 km through the earth's gravitatio...

    Text Solution

    |

  6. 0.02 moles of an ideal diatomic gas with initial temperature 20^@C is ...

    Text Solution

    |

  7. A heater supplying constant power P watts is switched on at time t=0 m...

    Text Solution

    |

  8. Unpolarized red light is incident on the surface of a lake at incident...

    Text Solution

    |

  9. A neutral spherical copper particle has a radius of 10 nm (1 nm=10^-9m...

    Text Solution

    |

  10. A charge +q is distributed over a thin ring of radius r with line char...

    Text Solution

    |

  11. Originally the radioactive beta decay was thought as a decay of a nucl...

    Text Solution

    |

  12. One gram-mole of an ideal gas A with the ratio of constant pressure an...

    Text Solution

    |

  13. How will the voltage (V) between the two plates of a parallel plate ca...

    Text Solution

    |

  14. Three large identical plates are kept close and parallel to each other...

    Text Solution

    |

  15. A metal rod of cross-sectional area 10^(-4)m^2 is hanging in a chamber...

    Text Solution

    |

  16. A short solenoid (length l and radius r, with n turns per unit length)...

    Text Solution

    |

  17. Consider the wall of a dam to be straight with height H and length L. ...

    Text Solution

    |

  18. Two containers C1 and C2 of volumes V and 4V respevtively hold the sam...

    Text Solution

    |

  19. Four electrons, each of mass me are in a one dimensional box of size L...

    Text Solution

    |

  20. A rope of length L and uniform linear density is hanging from the ceil...

    Text Solution

    |