A Car, Initially at Rest, Travels 20 M in 4

question 47

Multiple Choice

A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration. The acceleration of the car is:

• A) 0.4 m/s²
• B) 1.3 m/s²
• C) 2.5 m/s²
• D) 4.9 m/s²
• E) 9.8 m/s²

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Definitions:

Scientific Observation

The systematic process of gathering empirical data through the use of controlled and repeatable methods, crucial for scientific inquiry and hypothesis testing.

Quantitative Measurement

The process of obtaining and evaluating numerical data to describe attributes of a phenomenon.

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Nutritional and Dietary Requirements

The specific nutrient intake and dietary guidelines necessary to maintain health, often based on an individual's age, gender, and health status.