AP Physics 1mediummcq1 pt
A 1.0 kg block slides from rest down a 30° frictionless ramp of length 2.0 m (g = 10 m/s²). Its speed at the bottom is about
A.4.5 m/s
B.6.3 m/s
C.3.2 m/s
D.2.0 m/s
Explanation
Core Concept
Height change h = L sin 30° = 1.0 m; v = √(2gh) = √20 ≈ 4.5 m/s.
Correct Answer
A4.5 m/s
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