Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Concepts Of Physics MCQ Edition [Volume 1]PhysicsCentre of Mass, Linear momentum, Collision

During an inelastic collision,

Options

  1. Athe kinetic energy initially increases and subsequently decreases
  2. Bthe kinetic energy remains constant
  3. Cthe initial kinetic energy matches the final kinetic energy
  4. Dthe final kinetic energy is lower than the initial kinetic energy

Correct answer

D. the final kinetic energy is lower than the initial kinetic energy

Step-by-step solution

In an inelastic collision, the kinetic energy of the system is not conserved. A portion of the initial kinetic energy is dissipated in the form of heat, sound, or deformation energy during the collision. Therefore, the final kinetic energy of the system is always lower than the initial kinetic energy.

Practice Centre of Mass, Linear momentum, Collision on Quantrex Academy →

More from Centre of Mass, Linear momentum, Collision

As illustrated in the figure, a water molecule has a specific structure. Determine the distance of the molecule's centre of mass from the centre of the oxygen atom.A uniform disc of radius R is placed upon another uniform disc of radius 2R having the same thickness and density. The edges of the two discs touch one another. Determine the locatA disc of radius R is cut out from a larger disc of radius 2R such that the edge of the hole touches the edge of the larger disc. Determine the location of the centre of mass of thThree particles with masses of 1.0 kg , 2.0 kg and 3.0 kg are situated at the corners A , B and C respectively of an equilateral triangle ABC having an edge of 1 m . Find the coordSeven homogeneous bricks, each having a length L , are arranged as depicted in the figure. Every brick is shifted by L/10 relative to the one in contact with it. Determine the x -cA circular disc of diameter d and a square plate of edge d are placed touching each other at the midpoint of an edge of the plate, as shown in the figure. Determine the centre of mTwo blocks of masses 10 kg and 20 kg are located on the X -axis. The first mass is displaced along the axis by a distance of 2 cm . By what distance must the second mass be moved iDetermine the velocity of the centre of mass for the system of particles depicted in the figure. Full Centre of Mass, Linear momentum, Collision list All Concepts Of Physics MCQ Edition [Volume 1] PYQs