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Acceleration is described as exactly linearly proportional to which quantity?
AThe distance moved
BNet external force
CThe object's mass
DThe elapsed time
Answer & Solution
Correct answer: B. Net external force
1. The other half of the second law relates acceleration to force.
2. Acceleration is exactly inversely proportional to mass.
3. It is exactly linearly proportional to the net external force.
4. Combining the two proportionalities yields Newton's second law of motion.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 4 'Dynamics: Force and Newton's Laws of Motion', sections 4.1-4.8_
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