alleryA car accelerates from 10 m/s to 20 m/s in 5 seconds. Its acceleration is:
A2 m/s², because (20-10)/5
B6 m/s², because (10+20)/5
C10 m/s², because the full velocity change
D0.5 m/s², because 1 over (20-10)
Answer & Solution
Correct answer: A. 2 m/s², because (20-10)/5
Acceleration = (v - u) / t = (20 - 10) / 5 = 2 m/s².
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