One End of a Stiff Spring Is Attached Firmly to the Ceiling

question 136

Multiple Choice

One end of a stiff spring is attached firmly to the ceiling of a workshop (see figure) . The load F (in pounds) required to stretch the spring by x inches is given by F = kx, where k is the stiffness constant Of the spring. a. Solve F = kx for x.
b. How far will the spring stretch if its stiffness constant is 5 lb/in and it is loaded with a weight of 25.5 lb? Round to the nearest tenth of an inch.

• A) a. \(x = \frac { F } { k }\) b. \(5.1\) in.
• B) а. \(x = \frac { k } { F }\) b. \(0.2\) in.
• C) a. \(x = k F\) b. \(127.5 \mathrm { in }\).
• D) a. \(x = F - k\) b. \(20.4 \mathrm { in }\).

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Internal Rate

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Preference Decision

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Minimum Required

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