AP Physics 1mediummcq1 pt
A 2 kg ball is dropped from a height of 5 m. What is its speed just before hitting the ground? (g = 10 m/s²)
A.5 m/s
B.10 m/s
C.50 m/s
D.100 m/s
Explanation
Core Concept
Using conservation of energy: mgh = 0.5mv². So v² = 2gh = 2(10)(5) = 100, v = 10 m/s.
Correct Answer
B10 m/s
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