A Box of Mass M Is Pressed Against (But Is

question 41

Multiple Choice

A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k and negligible mass, compressing the spring a distance x. After it is released, the box slides up a frictionless incline as shown in the figure and eventually stops. If we repeat this experiment but instead use a spring having force constant 2k

• A) the box will go up the incline twice as high as before.
• B) just as it moves free of the spring, the kinetic energy of the box will be twice as great as before.
• C) just as it moves free of the spring, the speed of the box will be times as great as before.
• D) All of the above choices are correct.
• E) None of the above choices is correct.

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Definitions:

LEO

Low Earth Orbit, an orbit around Earth at an altitude between about 160 kilometers and 2,000 kilometers, commonly used for satellites, including those for communication and earth observation.

MEO

Medium Earth Orbit, a term used in satellite communications to describe the orbit of satellites located approximately 2,000 to 35,786 kilometers above the earth's surface.

GPS System

Global Positioning System, a satellite-based navigation system used to determine the precise location of an object or person on Earth.

GEO

Geostationary Earth Orbit, a type of orbit around the Earth that allows satellites to appear stationary relative to a position on the Earth.