AP Physics 1hardmcq1 pt
A particle's velocity changes from +8.0 m/s to −2.0 m/s in 2.0 s. Its average acceleration is
A.-5.0 m/s²
B.+5.0 m/s²
C.-3.0 m/s²
D.+3.0 m/s²
Explanation
Core Concept
a = Δv/Δt = (−2 − 8)/2.0 = −5.0 m/s².
Correct Answer
A-5.0 m/s²
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