An Unusual Spring Has a Restoring Force of Magnitude F

question 24

Multiple Choice

An unusual spring has a restoring force of magnitude F = (2.0 N/m) x + (1.0 N/m²) x², where x is the stretch of the spring from its equilibrium length. A 3.00 kg mass is attached to this spring and released from rest after stretching the spring 2.00 m. What is the speed of the mass when the spring returns to its equilibrium length?

• A)3.27 m/s
• B)5.48 m/s
• C)4.33 m/s
• D)7.41 m/s
• E)2.11 m/s

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Definitions:

Retail Method

An inventory valuation method used in the retail industry, estimating inventory cost by applying a cost to retail price ratio.

Estimated Cost

An approximation of the cost to produce a product, start a project, or execute a plan, often used in budgeting and planning.

Gross Profit Method

An accounting technique used to estimate inventory levels and cost of goods sold, calculated as sales minus the cost of goods sold.

Estimated Gross Profit Rate

A projected figure that calculates the percentage of gross profit to sales, used for analyzing a company's financial health.