A Block of Mass M Is Pushed Against a Spring

question 49

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 by distance 6d and released. What is the final speed of the block in this case?

• A) v
• B) 2v
• C) 3v
• D) 4v
• E) 5v

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Definitions:

Centrifuged

The process of using centrifugal force to separate substances of different densities or to remove moisture.

Venipuncture

A medical procedure that involves puncturing a vein with a needle to extract blood or administer medication.

Heparin

A medication used as an anticoagulant to prevent and treat blood clots in the veins, arteries, or lungs.

Coagulation Studies

Tests that evaluate the blood's ability to clot properly, used to diagnose bleeding disorders or monitor anticoagulant therapy.