A Very Light Ideal Spring with a Spring Constant (Force

question 138

Short Answer

A very light ideal spring with a spring constant (force constant) of 2.5 N/cm pulls
horizontally on an 18-kg box that is resting on a horizontal floor. The coefficient of static
friction between the box and the floor is 0.65, and the coefficient of kinetic friction is 0.45.
(a) How long is the spring just as the box is ready to move?
(b) If the spring pulls the box along with a constant forward velocity of 1.75 m/s, how long
is the spring?
(c) How long is the spring if it pulls the box forward at a constant 2.75 m/s?

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Definitions:

Obsolescence

The process of an asset, product, or technology becoming outdated or no longer used, often due to advancements in technology or changes in consumer preferences.

Useful Life

The estimated duration that an asset is expected to be functional and economically feasible for use in operations, affecting depreciation calculations.

Outdated

Refers to information, technology, or methods that are no longer current, useful, or in use.

Straight-Line Method

A method of calculating depreciation or amortization by evenly spreading the cost over an asset's useful life.