alleryStart learning →A velocity increases from 0 to 20 m/s over 10 s at a constant rate. What is the average acceleration?
A0.5 m/s^2
B2 m/s^2
C10 m/s^2
D200 m/s^2
Answer & Solution
Correct answer: B. 2 m/s^2
1. a = delta v / delta t = (20 m/s - 0) / 10 s.
2. a = 2 m/s^2.
3. 200 m/s^2 comes from multiplying instead of dividing.
_Source: OpenStax Physics (CC BY 4.0), Ch 3 "Acceleration", section 3.1 Acceleration_
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