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

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Definitions:

Adjusting Entry

Journal entries made at the end of an accounting period to allocate income and expenditure to the period in which they actually occurred.

Unearned Revenue

Money received by a company for goods or services yet to be delivered or performed, considered a liability until the obligation is fulfilled.

Ticket Revenue

Income generated from the sale of tickets, commonly associated with events, performances, transport services, or attractions.

Fixed Asset

Long-term tangible assets used in the operations of a business that are not expected to be converted to cash within a year, such as machinery, buildings, and equipment.