In a real collision,
A)kinetic energy is conserved.
B)linear momentum is conserved in the absence of external forces.
C)both momentum and kinetic energy are conserved.
D)neither momentum nor kinetic energy is conserved.
E)the extent to which momentum and kinetic energy are conserved depends on the coefficient of restitution.

Question

Quizplus · Accepted Answer

In a real collision, kinetic energy is not usually conserved due to the presence of external forces such as friction or air resistance. However, linear momentum is conserved in the absence of external forces, meaning that the total momentum of the system before the collision is equal to the total momentum of the system after the collision. This is known as the principle of conservation of momentum.

In a Real Collision