AP Physics 1hardmcq1 pt
A 3.0 kg cart at 2.0 m/s elastically hits a 1.0 kg cart at rest. The 3.0 kg cart's final speed is
A.1.0 m/s
B.2.0 m/s
C.0 m/s
D.3.0 m/s
Explanation
Core Concept
v₁' = (m₁−m₂)v₁/(m₁+m₂) = (2.0)(2.0)/4.0 = 1.0 m/s.
Correct Answer
A1.0 m/s
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