A Spring-Powered Launcher Has a Spring with a Constant of 150

question 10

Multiple Choice

A spring-powered launcher has a spring with a constant of 150 N/cm. The launcher is prepared by compressing the spring by 5.00 cm. If the mass of the projectile is 5.00 grams, what is the speed of the projectile when it is launched?

• A) 90.6 m/s
• B) 86.6 m/s
• C) 75.5 m/s
• D) 60.3 m/s
• E) 56.6 m/s

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Definitions:

William Stern

A psychologist known for his work in intelligence and the development of the intelligence quotient (IQ) formula.

Intelligence Quotient

A measure of a person's intelligence as indicated by an intelligence test, expressed as a ratio of the individual's mental age to their chronological age then multiplied by 100.

Charles Spearman

A psychologist known for his work in statistics and intelligence, including the concept of general intelligence, or "g factor."

Intelligence

The ability to learn, understand, and apply knowledge and skills, solve problems, and adapt to new situations.