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A racehorse accelerates from rest to 15.0 m/s west in 1.80 s. Its average acceleration magnitude is:
A1.8 m/s squared
B15 m/s squared
C8.33 m/s squared
D27 m/s squared
Answer & Solution
Correct answer: C. 8.33 m/s squared
1. Divide change in velocity by time.
2. 15.0 over 1.80 is 8.33.
3. The direction is west.
_Source: OpenStax College Physics for AP Courses 2e, Chapter 2, Kinematics (CC BY 4.0)._
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