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/s^2)
A.100 m/s
B.5 m/s
C.50 m/s
D.10 m/s
Explanation
Core Concept
Using conservation of energy: mgh = 0.5mv^2. So v^2 = 2gh = 2(10)(5) = 100, v = 10 m/s.
Correct Answer
D10 m/s
Practice more AP Physics 1 questions with AI-powered explanations
Practice Unit 4: Energy Questions →