A Lunar Module Weighs 16 Tons on the Surface of Earth

question 57

Multiple Choice

A lunar module weighs 16 tons on the surface of Earth. How much work is done in propelling the module from the surface of the moon to a height of 50 miles? Consider the radius of The moon to be 1100 miles and its force of gravity to be one-sixth that of Earth.

• A) \(1.35 \times 10 ^ { 12 } \mathrm { ft } - \mathrm { lb }\)
• B) \(1.35 \times 10 ^ { 9 } \mathrm { ft } - \mathrm { lb }\)
• C) \(6.73 \times 10 ^ { 8 } \mathrm { ft } - \mathrm { lb }\)
• D) \(4.09 \times 10 ^ { 9 } \mathrm { ft } - \mathrm { lb }\)
• E) \(4.09 \times 10 ^ { 12 } \mathrm { ft } - \mathrm { lb }\)

---

Definitions:

Aspect Ratio

A tire term calculated by dividing the section height by the section width.

Cracked Rim

A type of damage to the outer edge of a wheel where a crack has formed, potentially compromising the wheel's structural integrity.

Inner Tube

A rubber tube located inside some types of tires that is inflated to hold air pressure.

E-7018 Electrode

A type of welding electrode used for shielded metal arc welding, known for its low-hydrogen coating and suitability for welding carbon steel.