A Car Rounds a 20-M Radius Curve at a Speed

question 8

Multiple Choice

A car rounds a 20-m radius curve at a speed of 10 m/s.The magnitude of its acceleration is:

• A)0 m/s²
• B)0.20 m/s²
• C)5.0 m/s²
• D)40 m/s²
• E)400 m/s²

---

Definitions:

Stratum

A layer or a series of layers of rock in the ground or a level or layer of a material, typically one of several parallel layers stacked one above the other.

Melanocytes

Cells located in the skin that produce melanin, the pigment responsible for the skin's color and protection against UV radiation.

Keratinocytes

Cells that make up the majority of the epidermis, producing keratin to help form a protective barrier for the skin.

Melanin

A pigment found in the skin, hair, and eyes that gives them color and offers protection against ultraviolet radiation.