If a Body Moves in Such a Way That Its

question 25

Multiple Choice

If a body moves in such a way that its linear momentum is constant,then

• A)its kinetic energy is zero.
• B)the sum of all the forces acting on it must be zero.
• C)its acceleration is greater than zero and is constant.
• D)its center of mass remains at rest.
• E)the sum of all the forces acting on the body is constant and nonzero.

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Definitions:

Continental Crust

The thick layer of granite, sedimentary, and metamorphic rocks that forms the continents and continental shelves, distinct from oceanic crust.

Oceanic Crust

A thin layer of Earth's crust that lies beneath the ocean basins, composed mainly of basalt.

Elevation

The vertical distance of an object above or below a reference datum (usually mean sea level); generally the height of a ground point above sea level.

Green Mineral Olivine

A common silicate mineral found in the Earth's mantle, recognized by its olive-green color.