AP Physics 1mediummcq1 pt
A 2000 kg truck moving at 10 m/s collides with a 1000 kg car at rest and they stick. The wreck's speed is about
A.6.7 m/s
B.10 m/s
C.5.0 m/s
D.20 m/s
Explanation
Core Concept
(2000)(10) = (3000)v, so v = 20000/3000 ≈ 6.7 m/s.
Correct Answer
A6.7 m/s
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