A Mass of 25 Kg Is Acted on by Two

question 72

Multiple Choice

A mass of 25 kg is acted on by two forces: ₁ is 15 N due east, and ₂ is 10 N due north. The acceleration of the mass is

• A) 0.72 m/s², 56.3º north of east.
• B) 0.20 m/s², due east.
• C) 0.72 m/s², 33.7º north of east.
• D) 1.0 m/s², 33.7º north of east.
• E) 0.20 m/s², 56.3º north of east.

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Definitions:

Extracellular Matrix

A complex network of proteins and polysaccharides secreted by cells, providing structural and biochemical support to surrounding cells.

Fluid

A substance that has no fixed shape and yields easily to external pressure; can be a gas or a liquid.

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Specialized intercellular connections between a multitude of animal cell-types that permit the direct transfer of ions and small molecules.

Cardiac Muscle

A specialized form of muscle tissue found only in the heart, characterized by interconnected cells that contract rhythmically to pump blood throughout the body.