You and Mae Are in Free-Float Frames

question 39

Multiple Choice

You and Mae are in free-float frames.Mae has just passed you,traveling at a speed of 60 km/hr.You throw a ball toward her at a speed of 60 km/hr.What will Mae see the ball doing?

• A)She'll see the ball coming toward her at 60 km/hr.
• B)The ball will be stationary,floating freely in her own reference frame.
• C)She'll see the ball moving away from her at 60 km/hr.
• D)She'll see the ball coming toward her at 120 km/hr.

---

Definitions:

Bronchioles

Small airways in the lungs that branch off from the bronchi, leading to the alveoli where gas exchange occurs.

Ciliary Action

The movement of cilia, small hair-like structures, to move particles or fluid over their surface, commonly seen in respiratory and reproductive tracts.

Smooth Muscle

Involuntary, non-striated muscle found in the walls of internal organs such as the stomach, intestines, and blood vessels.

Hyaline Cartilage

Gelatinous, glossy cartilage tissue consisting of cartilage cells and their matrix; contains collagen, proteoglycans, and water.