AP Physics 1hardmcq1 pt
A cylinder rolls down a ramp from height 1.8 m (I = ½mr², g = 10 m/s²). Its speed at the bottom is about
A.4.9 m/s
B.6.0 m/s
C.3.5 m/s
D.2.4 m/s
Explanation
Core Concept
v = √(4gh/3) = √(4·10·1.8/3) = √24 ≈ 4.9 m/s.
Correct Answer
A4.9 m/s
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