Home
Class 11
PHYSICS
A projectile of mass 2kg has velocities ...

A projectile of mass `2kg` has velocities `3m//s` and `4m/s` at two points during its flight in the uniform gravitational field of the earth. If these two velocities are perpendicular to each other, then the minimum kinetic enerty of the particle during its flight is

A

`6.32J`

B

`8.40J`

C

`16.32J`

D

`5.76J`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    DC PANDEY ENGLISH|Exercise MCQ_TYPE|23 Videos

  • KINEMATICS

    DC PANDEY ENGLISH|Exercise COMPREHENSION_TYPE|13 Videos

  • KINEMATICS

    DC PANDEY ENGLISH|Exercise Subjective Questions|24 Videos

  • GRAVITATION

    DC PANDEY ENGLISH|Exercise (C) Chapter Exercises|45 Videos

  • KINEMATICS 1

    DC PANDEY ENGLISH|Exercise INTEGER_TYPE|15 Videos

Similar Questions

Explore conceptually related problems

Two bodies of different masses 2kg and 4kg are moving with velocities 2m//s and 10m//s towards each other due to mutual gravitational attraction. Then the velocity of the centre of mass is

Two smooth spheres A and B of masses 4kg and 8kg move with velocities 9m//s and 3m//s in opposite directions. If A rebounds on its path with velocity 1m//s , then

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.

Two rings of radii 5m and 10m move in opposite directions with velocity 20 m/s and 10 m/s respectively, on a conducting curface S. There is a uniform magnetic field of magnitude 0.1T perpendicular to the plane of the rings. Find the potential difference between the highest points of the two rings.

Two particles are performing SHM with same amplitude and time period. At an instant two particles are having velocity 1m//s but one is on the right and the other is on left of their mean positiion. When the particles have same position there speed is sqrt(3)m//s . Find the maximum speed (in m/s) of particles during SHM.

A particle of mass m is projected at an angle alpha to the horizontal with an initial velocity u . The work done by gravity during the time it reaches its highest point is

A car is travelling at a velocity of 10 m/s and has a mass of 850 kg. What is its kinetic energy?

When a particle is projected at some angle with the horizontal, the path of the particle is parabolic. In the process the horizontal velocity remains constant but the magnitude of vertical velocity changes. At any instant during flight the acceleration of the particle remains g in vertically downward direction. During flight at any point the path of particle can be considered as a part of circle and radius of that circle is called the radius of curvature of the path Consider that a particle is projected with velocity u=10 m//s at an angle theta=60^(@) with the horizontal and take value of g=10m//s^(2) . Now answer the following questions. The radius of curvature of path of particle at the instant when the velocity vector of the particle becomes perpendicular to initial velocity vector is

A particle of mass m and charge Q moving with a velocity v enters a region on uniform field of induction B Then its path in the region is s

A projectile is thrown at an angle of 30^(@) with a velocity of 10m/s. the change in velocity during the time interval in which it reaches the highest point is

DC PANDEY ENGLISH-KINEMATICS-SCQ_TYPE
  1. A very broad elevator is going up vertically with a constant accelerat...

    Text Solution

    |

  2. A particle is projected up an inclined plane with initial speed v=20m/...

    Text Solution

    |

  3. Two particle are projected from the same point on ground simultaneousl...

    Text Solution

    |

  4. Two particles A and B projected simultaneously from a point situated o...

    Text Solution

    |

  5. A projectile is fired at an angle of 30^(@) to the horizontal such tha...

    Text Solution

    |

  6. A particle starts from the origin of coordinates at time t = 0 and mov...

    Text Solution

    |

  7. The speed of a projectile when it is at its greatest height is sqrt(2/...

    Text Solution

    |

  8. After one second the velocity of a projectile makes an angle of 45^(@)...

    Text Solution

    |

  9. A particle is projected with a certain velocity at an angle alpha abov...

    Text Solution

    |

  10. Time taken by the particle to reach from A to B is t. Then the distanc...

    Text Solution

    |

  11. A projectile of mass 2kg has velocities 3m//s and 4m/s at two points d...

    Text Solution

    |

  12. With what minimum speed must a particle be projected from origin so th...

    Text Solution

    |

  13. A particle is projected from a point A with velocity sqrt(2)u an angle...

    Text Solution

    |

  14. A projectile is thrown with a velocity of 10sqrt(2)m//s at an angle of...

    Text Solution

    |

  15. A large rectangular box moves vertically downward with an acceleration...

    Text Solution

    |

  16. Two particles projected vertically upward from points (0,0) and (1,0)m...

    Text Solution

    |

  17. Trajectory of two particles projected from origin with speeds v(1) and...

    Text Solution

    |

  18. Two inclined planes OA and OB of inclinations alpha and beta equal to ...

    Text Solution

    |

  19. An elavator is going up vertically with a constant accelerartion of 2m...

    Text Solution

    |

  20. Two children are playing a game in which they try to hit a small box u...

    Text Solution

    |