A 030-M Radius Grinding Wheel Starts at Rest and Develops an an Angular

question 37

Multiple Choice

A 0.30-m radius grinding wheel starts at rest and develops an angular speed of 20 rad/s in 5 s.What is the average tangential acceleration of a point on the wheel's edge?

• A) 6 m/s²
• B) 1.2 m/s²
• C) 66.7 m/s²
• D) 2.4 m/s²
• E) ​100 m/s²

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Definitions:

Singular

A grammatical number denoting a single item or unit, as opposed to plural which denotes more than one.

Article "a"

An indefinite article in the English language used before words beginning with a consonant sound to indicate the singular form of a noun.

Subject

The person, place, thing, or idea that is doing or being something in a sentence.

Predicate

The part of a sentence or clause containing a verb and stating something about the subject (e.g., went home in 'John went home').