A 620-G Object Traveling at 2

question 28

Multiple Choice

A 620-g object traveling at 2.1 m/s collides head-on with a 320-g object traveling in the opposite direction at 3.8 m/s.If the collision is perfectly elastic,what is the change in the kinetic energy of the 620-g object?

• A) It loses 0.23 J.
• B) It gains 0.69 J.
• C) It loses 0.47 J.
• D) It loses 1.4 J.
• E) It doesn't lose any kinetic energy because the collision is elastic.

---

Definitions:

Negative Events

Unfavorable or detrimental occurrences that can impact individuals or groups emotionally, physically, or materially.

Positive Ones

Refers to situations, experiences, or aspects that have a beneficial impact on an individual's life or well-being.

Feeling of Superiority

An attitude or belief that one is more valuable or important than others, often leading to dismissive or condescending behavior.

Negative Energy

A concept often used to describe a feeling or atmosphere of pessimism, unhappiness, or toxicity that can affect individuals’ mood and well-being.