Car a Rear Ends Car B, Which Has Twice the Mass

question 77

Multiple Choice

Car A rear ends Car B, which has twice the mass of A, on an icy road at a speed low enough so that the collision is essentially elastic. Car B is stopped at a light when it is struck. Car A has mass m and speed v before the collision. After the collision

• A) each car has half the momentum.
• B) car A stops and car B has momentum mv.
• C) car A stops and car B has momentum 2mv.
• D) the momentum of car B is four times as great in magnitude as that of car A.
• E) each car has half of the kinetic energy.

---

Definitions:

Object Relations

A theory in psychoanalysis focusing on the relationships between individuals and the external objects (often other people) that represent significant others in one’s life.

Sociocultural

Pertaining to the combination of social and cultural factors that influence an individual's behavior and experiences.

Theoretical Orientation

A foundational perspective or set of principles that guides a therapist's approach to understanding and treating psychological issues.

Living Conditions

The circumstances or factors affecting the way in which people live, including their housing, environment, and access to resources and services.