Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Center of Mass and Collision question

2016 · Q145
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Center of Mass and Collision
  5. /2016 · Q145

Center of Mass and Collision question

2016 · Q145

NEETPhysicsCenter of Mass and CollisionMCQ+4 / −1
Two identical balls A and B having velocities of 0.5 m s−-−1 and −-−0.3 m s−-−1 respectively collide elastically in one dimension. The velocities of B and A after the collision respectively will be :
  1. A
    −-−0.5 m s−-−1 and 0.3 m s−-−1
  2. B
    0.5 m s−-−1 and −-−0.3 m s−-−1
  3. C
    −-−0.3 m s−-−1 and 0.5 m s−-−1
  4. D
    0.3 m s−-−1 and 0.5 m s−-−1
View written solutionFree

Correct answer: B

Masses of the balls are same and collision is elastic, so their velocity will be interchanged after collision.

PreviousNext

More from Center of Mass and Collision

  • Two particles of masses m1, m2 move with initial velocities u1 and u2. On collision, one of the particles get excited to higher level, after absorbing energy ε. If final velocities of particles be v1 and v2 then we must have :2015 · MCQ
  • Two spherical bodies of mass M and 5M and radii R and 2R are released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only, then the distance covered by the…2015 · MCQ
  • The force F acting on a particle of mass m is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8 s is : Includes diagram2014 · MCQ
  • A body of mass (4m) is lying in x-y plane at rest. It suddenly explodes into three pieces. Two pieces, each of mass (m) move perpendicular to each other with equal speeds (v). The total kinetic energy generated due to explosion is :2014 · MCQ
  • A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots horizontally, in 5 s. Each bullet has a mass of 10 g with a muzzle velocity of 800 m s−1. The final velocity acquired by…2013 · MCQ
  • An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass 1 kg moves with a speed of 12 m s−1 and the second part of mass 2 kg moves with 8 m s−1 speed.…2013 · MCQ
  • Three masses are placed on the x-axis : 300 g at origin, 500 g at x = 40 cm and 400 g at x = 70cm. The distance of the centre of mass from the orgin is :2012 · MCQ
  • Two spheres A and B of masses m1 and m2 respectively collide. A is at rest initially and B is moving with velocity v along x-axis. After collision B has a velocity 2v​ in a direction perpendicular to the original direction. The…2012 · MCQ