Question

An object moving on a horizontal frictionless surface makes a glancing collision with another object initially at rest on the surface in this cage which of the following is true about momentum and kinetic energy

Answer 1

In the described collision of two objects of equal mass where one object stops and the other moves with the initial velocity of the first, both momentum and kinetic energy are conserved, indicating an elastic collision.

Step-by-step explanation:

When two objects of equal mass collide on a frictionless surface, such as in the scenario where object A is moving and collides with object B which is at rest, there are fundamental principles that govern the outcome of the collision. Based on the law of conservation of momentum, which states that the total momentum of a system remains constant in the absence of external forces, momentum is conserved in this interaction. Furthermore, when the collision is elastic, meaning there is no deformation or generation of heat, kinetic energy is also conserved. For this specific situation, if object A stops after the collision and object B moves away with the same velocity object A had before, this indicates an elastic collision, thus both momentum and kinetic energy are conserved.