Physics - Center of Mass Question with Solution | TestHub
Assertion (A): In an elastic collision, both momentum and kinetic energy are conserved.
Reason (R): In an elastic collision, the forces involved are conservative, and there is no loss of kinetic energy as heat or deformation.
Options:
Answer:
Solution:
In any collision where no external forces act on the system, the total linear momentum is conserved. This applies to both elastic and inelastic collisions.
An elastic collision is specifically defined as a collision in which both momentum and kinetic energy are conserved. The conservation of kinetic energy implies that no mechanical energy is converted into other forms like heat, sound, or deformation energy. This condition is met when the internal forces involved in the collision are conservative. Thus, both A and R are true, and R correctly explains A.
