Newton's Second Law: a 7

question 94

Multiple Choice

Newton's second law: A 7.0-kg object is acted on by two forces. One of the forces is 10.0 N acting toward the east. Which of the following forces is the other force if the acceleration of the object is 1.0 m/s² toward the east?

• A) 6.0 N east
• B) 3.0 N west
• C) 12 N east
• D) 9.0 N west
• E) 7.0 N west

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Definitions:

Earth's Core

The innermost part of Earth, composed primarily of iron and nickel, divided into the solid inner core and the liquid outer core.

Tectonic Plates

Large pieces of the Earth's crust that move, float, and sometimes fracture and whose interaction causes continental drift, earthquakes, volcanoes, mountains, and oceanic trenches.

Ejecta

Material that is expelled or thrown out, especially as a result of volcanic eruption, meteorite impact, or other explosive events.

Sedimentary

Pertaining to rocks formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by compaction.