The Center of Mass of a System of Particles Has

question 95

Multiple Choice

The center of mass of a system of particles has a constant velocity if:

• A)the forces exerted by the particles on each other sum to zero
• B)the external forces acting on particles of the system sum to zero
• C)the velocity of the center of mass is initially zero
• D)the particles are distributed symmetrically around the center of mass
• E)the center of mass is at the geometric center of the system

---

Definitions:

Vocabulary Exposure

The process of encountering and learning new words, which contributes to language development and comprehension.

Home Sign

Refers to a rudimentary sign language developed by deaf children who lack access to formal sign language or spoken language input.

Chromium

A chemical element with symbol Cr and atomic number 24, known for its durability and shiny appearance; it is used in stainless steel, dyes, and pigments.

Daxing

A district of Beijing, China, known for its rapid urbanization and development.