Two Forces of 4 N and 12 N Act on a Body

question 2

Multiple Choice

Two forces of 4 N and 12 N act on a body simultaneously.The net force on the body is

• A)4 N.
• B)12 N.
• C)16 N.
• D)8 N.
• E)impossible to tell from the given information.

---

Definitions:

Stroke Volume

The amount of blood ejected from the left ventricle of the heart with each contraction.

Intercalated Discs

Specialized structures in cardiac muscle cells that facilitate cell-to-cell communication and contraction through gap junctions and desmosomes.

Terminal Cisternae

Enlarged areas of the sarcoplasmic reticulum around the muscle's transverse tubules involved in calcium storage and release.

T-tubules

Tubular extensions of the cell membrane into muscle cells, facilitating rapid transmission of action potentials to ensure efficient contraction.