A 10-Kg Mass Is Acted on by a Net Force of of 4.0

question 10

Multiple Choice

A 1.0-kg mass is acted on by a net force of 4.0 N and a 3.0-kg mass is acted on by a net force of 3.0 N,in the directions shown.The acceleration of the center of mass of this system is approximately

• A)1.3 m/s²,53º N of E
• B)1.8 m/s²,45º N of E
• C)4.0 m/s²,due north
• D)5.0 m/s²,N of E
• E)7.0 m/s²,53º N of E

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Definitions:

Opposite Direction

A term indicating a movement, action, or trend that goes in the reverse direction of a previously established pattern or expectation.

Correlation

A measure that represents the extent to which two variables change together, but it does not necessarily imply causation.

Validity

The extent to which a test, measure, or research accurately reflects or assesses the specific concept it is intended to.

Reliability

The degree to which an assessment tool or measurement can produce stable and consistent results over time.