A Constant Force Is Applied to a Body That Is

question 35

Multiple Choice

A constant force is applied to a body that is already moving. The force is directed at an angle of 60 degrees to the direction of the body's velocity. What is most likely to happen is that

• A) the body will stop moving.
• B) the body will move in the direction of the force.
• C) the body's velocity will increase in magnitude but not change direction.
• D) the body will gradually change direction more and more toward that of the force while speeding up.
• E) the body will first stop moving and then move in the direction of the force.

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Definitions:

Protein

Macromolecules consisting of long sequences of α-amino acids [H2N-CHR-COOH] in peptide (amide) linkage (elimination of H2O between the α-NH2 and α-COOH of successive residues). Protein is three-fourths of the dry weight of most cell matter and is involved in structures, hormones, enzymes, muscle contraction, immunologic response, and essential life functions. The amino acids involved are generally the 20 α-amino acids (glycine, l-alanine) recognized by the genetic code. Cross-links yielding globular forms of protein are often effected through the 2SH groups of two sulfur-containing l-cysteinyl residues, as well as by noncovalent forces (such as hydrogen bonds, lipophilic attractions).

Carbohydrate Reserves

Stored sugars and starches in the body, primarily in the liver and muscles, used as a source of energy.

Protein

Essential macromolecules composed of amino acids, crucial for the structure, function, and regulation of the body's cells, tissues, and organs.

Dairy Products

Food products made from milk, such as cheese, butter, yoghurt, and ice cream.