In a system with two moving objects,when a collision occurs between the objects:
A)the total kinetic energy is always conserved.
B)the total momentum is always conserved.
C)the total kinetic energy and total momentum are always conserved.
D)neither the kinetic energy nor the momentum is conserved.

Question

Quizplus · Accepted Answer

In a collision, the total momentum of the system is always conserved, which means that the momentum before the collision is equal to the momentum after the collision. However, the total kinetic energy may not be conserved, as some of the kinetic energy may be converted to other forms of energy such as heat, sound, and deformation energy. Therefore, choice B is the correct answer.

In a System with Two Moving Objects,when a Collision Occurs