A Force of 20 Pounds Stretches a Spring $\frac { 3 } { 4 }$

question 98

Multiple Choice

A force of 20 pounds stretches a spring $\frac { 3 } { 4 }$ foot beyond its natural length. Find the work done in stretching the spring 1 foot.

• A)20 ft-lb
• B) \(\frac { 20 } { 3 }\) ft-lb
• C) \(\frac { 80 } { 3 }\) ft-lb
• D) \(\frac { 40 } { 3 }\) ft-lb
• E) \(\frac { 40 } { 9 }\) ft-lb
• F) \(\frac { 80 } { 9 }\) ft-lb
• G) \(\frac { 40 } { 6 }\) ft-lb
• H) \(\frac { 80 } { 6 }\) ft-lb

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Definitions:

Function

An action or activity assigned to or expected from a person or thing.

Epidermis

The outermost layer of the skin, serving as a protective barrier against environmental hazards.

Lamellated Corpuscle

A nerve ending found in the skin and other tissues that is sensitive to pressure and vibration, also known as a Pacinian corpuscle.

Arrector Pili Muscle

A small muscle attached to hair follicles in mammals, responsible for causing hairs to stand up when the organism is cold or frightened.