AP Physics 1mediummcq1 pt
A spring of k = 500 N/m launches a 0.50 kg block horizontally from 0.20 m compression. The block's speed leaving the spring is about
A.6.3 m/s
B.40 m/s
C.10 m/s
D.3.2 m/s
Explanation
Core Concept
½kx² = ½mv²: v = √(kx²/m) = √((500)(0.04)/0.50) = √40 ≈ 6.3 m/s.
Correct Answer
A6.3 m/s
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