A Block of Mass M Is Pushed Against a Spring

question 21

Multiple Choice

A block of mass m is pushed against a spring of spring constant k. The spring is compressed by a distance d, the block is then released. It is launched by the spring along a horizontal frictionless surface with a final speed v. A second block, this one having mass 4m is pushed against the same spring and released, gaining a final speed 2v. By what distance was the spring compressed in the second case?

• A) d
• B) 2d
• C) 4d
• D) 16d
• E) 25d

Recognize the importance of specific nutrients and their sources in the human diet.

Identify signs and symptoms of nutrient deficiencies and excesses.

Apply knowledge of nutrition to promote healthy dietary behaviors.

Understand the physiological impact of changes in dietary intake.

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